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Important Questions

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
  1. Application of Derivatives
  2. Inverse Trigonometric Functions
  3. Matrices
  4. Determinants
  5. Integrals
  6. Differential Equations
  7. Application of Integrals
  8. Continuity & Differentiation
  9. Vector Algebra
  10. Three Dimensional Geometry
  11. Probability
  12. Linear Programming
  13. Relations & Functions