CBSE Guess > Papers > Important Questions > Class XII > 2009 > Maths > Mathematics By Anil Kumar Tondak
CBSE CLASS XII
Inverse Trigonometric Functions
Q. 1. Find the value of: tan-1 (1) + cos-1 (-1/2) + sin-1 (-1/2).
Q. 2. Prove: tan-1x + tan-1 
= tan-1 
, |x|< 
Q. 3. If tan-1 
then find the value of x.
Q. 4. Find the value of sin 
.
Q. 5. Prove: sin-1
Q. 6. Solve: tan-12x + tan-13x = 
Q. 7. Prove: 
Q. 8. Solve: sin-1 ( 1 –x) – 2sin-1x = 
.
Q. 9. Evaluate: tan-1
- sec-1 (-2) + cosec-1 
.
Q. 10. Prove : tan-1 
= 
Q. 11. Simplify: sin-1 
,
Q. 12. Prove:sec2 (tan-12) + cosec2 ( cot-13) = 15.
Q. 13. Simplify : tan-1 
Q. 14. Prove: tan-1 
=
Q. 15. If sin(sin-1 
, then find the value of x.
Q. 16. Prove that :
2tan-1
= cos-1
Prepared By Anil Kumar Tondak
M.Sc.(Maths), M.Ed.,
M.A.(Eco),M.B.A.(Mkt)
Mob No. 9811363962
| Maths |
