Question

plz give me the solution of Q.17​

Answer 1

Step-by-step explanation:

sin a = 1/2

sin = 1/cosec

cosec a = 2

1/2 -2

(1 - 4)/2 = -3/2

Answer 2

Given:

SinØ = 1/2

To find:

sinØ - cosecØ

Solution:

we know that

SinØ = 1/ CosecØ or CosecØ= 1/ SinØ

also we are given that SinØ= 1/2

:. CosecØ = 2

Now,

Substitute values

$= > \frac{1}{2} - 2 \\ \\ = > \frac{1 - 4}{2} ({taking \: lcm}) \\ \\ = > \frac{ - 3}{2}$

Hence, option B is correct

Please mark as brainliest