MCQ Answers for CBSE 12 Science Maths Continuity and Differentiability in English to enable students to get Answers in a narrative video format for the specific question.

Expert Teacher provides MCQ Answers for CBSE 12 Science Maths Continuity and Differentiability through Video Answers in English language. This video solution will be useful for students to understand how to write an answer in exam in order to score more marks. This teacher uses a narrative style for a question from Continuity and Differentiability not only to explain the proper method of answering question, but deriving right answer too.

Please find the question below and view the Answer in a narrative video format.

** Question:**

** Using the fact that and the differentiation, obtain the sum formula for cosines. **

** Answer Video in** **English****:**

You can select video Answers from other languages also. Please check Answers in ( Hindi )

**Question 1** : If , find in terms of y alone. (View Answer Video)

**Question 2** : Differentiate the function with respect to x. (View Answer Video)

**Question 3** : Using the fact that and the differentiation, obtain the sum formula for cosines. (View Answer Video)

**Question 4** : Differentiate w.r.t.x the function . (View Answer Video)

**Question 5** : Find for the function . (View Answer Video)

**Question 1** : Write the value of (View Answer Video)

**Question 2** : Write the principal value of (View Answer Video)

**Question 3** : is equal to :

(View Answer Video)

**Question 4** : Solve for

(View Answer Video)

**Question 5** : If find x. (View Answer Video)

**Question 1** : If E and F are two events such that,

, Find P(not E and not F). (View Answer Video)

**Question 2** : A couple has 2 children. Find the probability that both are boys, if it is known that the older child is boy. (View Answer Video)

**Question 3** : Evaluate , if 2P(A)=P(B)= and =. (View Answer Video)

**Question 4** : Probability of solving specific problem independently by A and B are and respectively. If both try to solve the problem, independently, then find the probability that exactly one of them solves the problem. (View Answer Video)

**Question 5** : A die is thrown 6 times. If 'getting an odd number' is a 'success', what is the probability of obtaining:

atmost 5 successes? (View Answer Video)

**Question 1** : If f(x) = |x| and g(x) = | 5x – 2 |. Then, fog = _____. (View Answer Video)

**Question 2** : The identity element for the binary operation * defined by a * b = , where a, b are the elements of a set of non-zero rational numbers, is, (View Answer Video)

**Question 3** : Functions are defined respectively, by , find . (View Answer Video)

**Question 4** : Number of binary operations on the set { a, b} are: (View Answer Video)

**Question 5** : If is a relation on N, write the range of R. (View Answer Video)