If (cos 2x-a \sin x=2a-7) then range of (a) is: | Mathematics | SolveeIt | Solveeit

Today, August 24

Question

If $cos 2x-a \sin x=2a-7$ then range of $a$ is:

A

$-2 ≤ a ≤ 0$

B

$2 ≤ a ≤ 6$

C

$a ≥ 6$

D

$6 ≤ a ≤ 8$

Answer

$2 ≤ a ≤ 6$

Explanation

Solution

The Correct Option is (B) : $2 ≤ a ≤ 6$