Question

please answer this question

Answer 1

Answer:

Step-by-step explanation:

1. SinФ=1/2;

SinФ(SinФ-cosecФ);

by the trigonometry property CosecФ=$\frac{1}{SinФ}$;

By opening the brackets:

Sin$^{2}$Ф-1;

($\frac{1}{2}^{2} -1$)

0.25-1=-0.75;

Is the answer