Question

Sin∅(Cosec∅ - Sin∅)
a) sin²∅
b) tan²∅
c) cot²∅
d) cos²∅

*∅ means theta

Answer 1

Answer:

Answer is d) cos²∅

Step-by-step explanation:

$\sin∅(cosec∅ - \sin∅) = \sin∅( \frac{1}{ \sin∅} - \sin∅) = \sin∅( \frac{1 - \sin²∅}{ \sin∅} ) = \sin∅( \frac{cos²∅}{sin∅} ) = cos²∅$