Question

if sin A = 1/2 find the value of sin A(sin A - cosec A)

Answer 1

Heya,

sin A = 1/ cosec A =1/2

=>cosec A =2

Now, sin A(Sin A - Cosec A)

=1/2(1/2-2)

=1/2(-3/2)

= -3/4

Hence, sin A(sin A - Cosec A) = -3/4