Q. If $10 s i n^{4} α + 15 co s^{4} α = 6, α ϵ (- \frac{π}{2}, \frac{π}{2})$ , then 27 $cose c^{6} α + 8 se c^{6} α$ is equal to :

1872 254 JEE MainJEE Main 2020Trigonometric Functions Report Error

A

$250$

B

$280$

C

$270$

D

$240$

Solution:

Correct answer is (a) $250$