NTA Abhyas JEE Main2020MathematicsInverse Trigonometric FunctionsPractice
The value of cos tan - 1 3 4 + cos tan - 1 x is equal to
Options
- A4 5 + x 1 + x 2
- B3 5 + 1 1 + x 2
- C4 5 + 1 1 + x 2
- D3 5 + x 1 x 2
Correct answer
C. 4 5 + 1 1 + x 2
Step-by-step solution
cos tan - 1 3 4 + cos tan - 1 x = cos cos - 1 4 5 + cos cos - 1 1 1 + x 2 = 4 5 + 1 1 + x 2