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NCERT Solutions for Exercise 5.7 Class 12 Maths Chapter 5 Continuity and Differentiability are discussed here. These NCERT solutions are created by subject matter expert at Careers360 considering the latest syllabus and pattern of CBSE 2023-24. In the previous exercises, you have learned about finding the first-order differentiation of different types of functions. In NCERT solutions for Class 12 Maths chapter 5 exercise 5.7, you will learn about finding the derivatives of second order. If a function y=f(x) is given, you can find its first-order derivative by differentiation of y y w.r.t x i.e. f'(x) = dy/dx and if you again differentiate f'(x) w.r.t the x, you will get the second-order f''(x).
If you have command on the first-order differentiation then exercise 5.7 Class 12 Maths will be very easy for you as you just need to differentiate the given function two times. The first and second-order derivatives are useful in finding minimum and maximum values of the functions, finding the domain and range of the function, other subjects also. 12th class Maths exercise 5.7 answers are designed as per the students demand covering comprehensive, step by step solutions of every problem. Practice these questions and answers to command the concepts, boost confidence and in depth understanding of concepts. Students can find all exercise together using the link provided below.
Also, see
Question:1 Find the second order derivatives of the functions given in Exercises 1 to 10.
Answer:
Given function is
Now, differentiation w.r.t. x
Now, second order derivative
Therefore, the second order derivative is
Question:2 Find the second order derivatives of the functions given in Exercises 1 to 10.
Answer:
Given function is
Now, differentiation w.r.t. x
Now, the second-order derivative is
Therefore, second-order derivative is
Question:3 Find the second order derivatives of the functions given in Exercises 1 to 10.
Answer:
Given function is
Now, differentiation w.r.t. x
Now, the second-order derivative is
Therefore, the second-order derivative is
Question:4 Find the second order derivatives of the functions given in Exercises 1 to 10.
Answer:
Given function is
Now, differentiation w.r.t. x
Now, second order derivative is
Therefore, second order derivative is
Question:5 Find the second order derivatives of the functions given in Exercises 1 to 10.
Answer:
Given function is
Now, differentiation w.r.t. x
Now, the second-order derivative is
Therefore, the second-order derivative is
Question:6 Find the second order derivatives of the functions given in Exercises 1 to 10.
Answer:
Given function is
Now, differentiation w.r.t. x
Now, second order derivative is
Therefore, second order derivative is
Question:7 Find the second order derivatives of the functions given in Exercises 1 to 10.
Answer:
Given function is
Now, differentiation w.r.t. x
Now, second order derivative is
Therefore, second order derivative is
Question:8 Find the second order derivatives of the functions given in Exercises 1 to 10.
Answer:
Given function is
Now, differentiation w.r.t. x
Now, second order derivative is
Therefore, second order derivative is
Question:9 Find the second order derivatives of the functions given in Exercises 1 to 10.
Answer:
Given function is
Now, differentiation w.r.t. x
Now, second order derivative is
Therefore, second order derivative is
Question:10 Find the second order derivatives of the functions given in Exercises 1 to 10.
Answer:
Given function is
Now, differentiation w.r.t. x
Now, second order derivative is
Using Quotient rule
Therefore, second order derivative is
Question:11 If prove that
Answer:
Given function is
Now, differentiation w.r.t. x
Now, the second-order derivative is
Now,
Hence proved
Question:12 If Find in terms of y alone.
Answer:
Given function is
Now, differentiation w.r.t. x
Now, second order derivative is
-(i)
Now, we want in terms of y
Now, put the value of x in (i)
Therefore, answer is
Question:13 If , show that
Answer:
Given function is
Now, differentiation w.r.t. x
-(i)
Now, second order derivative is
By using the Quotient rule
-(ii)
Now, from equation (i) and (ii) we will get
Now, we need to show
Put the value of from equation (i) and (ii)
Hence proved
Question:14 If , show that
Answer:
Given function is
Now, differentiation w.r.t. x
-(i)
Now, second order derivative is
-(ii)
Now, we need to show
Put the value of from equation (i) and (ii)
Hence proved
Question:15 If , show that
Answer:
Given function is
Now, differentiation w.r.t. x
-(i)
Now, second order derivative is
-(ii)
Now, we need to show
Put the value of from equation (ii)
Hence, L.H.S. = R.H.S.
Hence proved
Question:16 If show that
Answer:
Given function is
We can rewrite it as
Now, differentiation w.r.t. x
-(i)
Now, second order derivative is
-(ii)
Now, we need to show
Put value of from equation (i) and (ii)
Hence, L.H.S. = R.H.S.
Hence proved
Question:17 If show that
Answer:
Given function is
Now, differentiation w.r.t. x
-(i)
Now, the second-order derivative is
By using the quotient rule
-(ii)
Now, we need to show
Put the value from equation (i) and (ii)
Hence, L.H.S. = R.H.S.
Hence proved
In Class 12th Maths chapter 5 exercise 5.7, you will get 17 questions related to finding the second-order derivatives. There are four examples given in the NCERT book prior to the ex 5.7 which you can solve to get more familiar with second derivatives before solving the exercise question. After solving examples, you can try to solve Class 12th Maths chapter 5 exercise 5.7 questions. You may not be to solve these exercise 5.7 Class 12 Maths problems by yourself at first. You can go through Class 12 Maths chapter 5 exercise 5.7 solutions to get conceptual clarity.
Also Read| Continuity and Differentiability Class 12th Chapter 5 Notes
Also see-
Happy learning!!!
y = c
dy/dx = 0
y = c
dy/dx = 0
d(dy/dx)/dx = 0
Given y = x
dy/dx = 1
Given y = x
dy/dx = 1
d(dy/dx)/dx = 0
y = e^x
dy/dx = e^x
d(dy/dx)/dx = e^x
d^(2)y/dx^2 = e^x
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Click on the given link to get Syllabus for CBSE Class 10 Maths.
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Hello there! Thanks for reaching out to us at Careers360.
Ah, you're looking for CBSE quarterly question papers for mathematics, right? Those can be super helpful for exam prep.
Unfortunately, CBSE doesn't officially release quarterly papers - they mainly put out sample papers and previous years' board exam papers. But don't worry, there are still some good options to help you practice!
Have you checked out the CBSE sample papers on their official website? Those are usually pretty close to the actual exam format. You could also look into previous years' board exam papers - they're great for getting a feel for the types of questions that might come up.
If you're after more practice material, some textbook publishers release their own mock papers which can be useful too.
Let me know if you need any other tips for your math prep. Good luck with your studies!
It's understandable to feel disheartened after facing a compartment exam, especially when you've invested significant effort. However, it's important to remember that setbacks are a part of life, and they can be opportunities for growth.
Possible steps:
Re-evaluate Your Study Strategies:
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Remember: This is a temporary setback. With the right approach and perseverance, you can overcome this challenge and achieve your goals.
I hope this information helps you.
Hi,
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hello mahima,
If you have uploaded screenshot of your 12th board result taken from CBSE official website,there won,t be a problem with that.If the screenshot that you have uploaded is clear and legible. It should display your name, roll number, marks obtained, and any other relevant details in a readable forma.ALSO, the screenshot clearly show it is from the official CBSE results portal.
hope this helps.
Hello Akash,
If you are looking for important questions of class 12th then I would like to suggest you to go with previous year questions of that particular board. You can go with last 5-10 years of PYQs so and after going through all the questions you will have a clear idea about the type and level of questions that are being asked and it will help you to boost your class 12th board preparation.
You can get the Previous Year Questions (PYQs) on the official website of the respective board.
I hope this answer helps you. If you have more queries then feel free to share your questions with us we will be happy to assist you.
Thank you and wishing you all the best for your bright future.
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