5th: 5 If tan x2 is rational, which of the following quantities are necessary rational A sin - Maths - Trigonometric Functions

Question

5th:
5 If tan x 2 is rational, which of the following quantities are
necessary rational ?
A   sin   x            
            B   cos   x
                 
      C   sec   x 2      
          D   tan   x

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Md.Ashraf Khan · Accepted Answer

5th: 5. If tan x 2 is rational, which of the following quantities are necessary rational ? A sin x B cos x C sec x 2 D tan x ​

5th:
5. If tan $\frac{x}{2}$ is rational, which of the following quantities are necessary rational ?
$(A) \sin x (B) \cos x (C) \sec \frac{x}{2} (D) \tan x$