If an angle a is divided integralo two parts A and B such th... | Mathematics | SolveeIt | Solveeit

Today, August 24

Question

If an angle a is divided into two parts A and B such that A-B=x and tan A: tan B=k:1, then the value of sinx is

A

$\frac{k+1}{k-1}$ sina

B

$\frac{k}{k+1}$ sina

C

$\frac{k-1}{k+1}$ sina

D

$\frac{k+1}{k}$ cosa

Answer

$\frac{k-1}{k+1}$ sina

Explanation

Solution

The correct answer is(C): $\frac{k-1}{k+1}$ sina