if 0\<x, y<(\pi) and cosx+cosy-cos(x y)=(\frac{3}{2}),Then s... | Mathematics | SolveeIt | Solveeit

Today, August 19

Question

if 0<x, y< $\pi$ and cosx+cosy-cos(x y)= $\frac{3}{2}$ ,Then sin x+cos y=?

A

$\frac{1}{2}$

B

$\frac{1+\sqrt3}{2}$

C

$\frac{\sqrt3}{2}$

D

$\frac{1-\sqrt3}{2}$

Answer

$\frac{1+\sqrt3}{2}$

Explanation

Solution

The given equation can be solved as: