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# NCERT Solutions class 12 Maths Miscellaneous

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## NCERT Solutions class 12 Maths Inverse Trigonometric Function

Find the value of the following:

1.

Ans.

=

=

=

=  i.e., , value of  lies in I quadrant.

=  =

2.

Ans.

=

=

=

=  i.e., , value of  lies in I quadrant.

=  =

3. Prove that:

Ans. Let   so that

Since

=  =  =

4. Prove that:

Ans. Let  so that

Again, Let  so that

Since

=

=

5. Prove that:

Ans. Let so that

Again, Let  so that

Since  =

=

6. Prove that:

Ans. Let  so that

Again, Let  so that

Since  =

=

7. Prove that:

Ans. Let  so that

Again, Let  so that

Since  =

=

8. Prove that:

Ans. L.H.S. =

=

=

=

=

=

=

R.H.S.

9. Prove that:

Ans. Let  so that

=

=

=

=

10. Prove that:

Ans. We know that   =

Again,

=

L.H.S. =

=

=

=

11. Prove that:

Ans. Putting  so that

L.H.S. =

=

=

=

Dividing every term by

=

=

=  =

=  = R.H.S.

12. Prove that:

Ans. L.H.S. =

=

=  …(i)

Now, let  so that

From eq. (i),  = R.H.S.

13. Solve the equation:

Ans.

14. Solve the equation:

Ans. Putting

15.  is equal to:

(A)

(B)

(C)

(D)

Ans. Let  where  so that

Putting

Therefore, option (D) is correct.

16.  then  is equal to:

(A)

(B)

(C) 0

(D)

Ans. Putting  so that

or

or

But  does not satisfy the given equation.

Therefore, option (C) is correct.

NCERT Solutions class 12 Maths Miscellaneous

17.  is equal to:

(A)

(B)

(C)

(D)

Ans.

=

=

=

=

=

=

Therefore, option (C) is correct.

## NCERT Solutions class 12 Maths Miscellaneous

NCERT Solutions Class 12 Maths PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 12 Maths includes text book solutions from both part 1 and part 2. NCERT Solutions for CBSE Class 12 Maths have total 13 chapters. 12 Maths NCERT Solutions in PDF for free Download on our website. Ncert Maths class 12 solutions PDF and Maths ncert class 12 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide

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