Question

What is the value of Sin 30° - Cosec 45°?

A) (2√6 - 1)/√3 B) (1 - 2√3)/2 C) (√2 - √3)/√6 D) (1 - 2√2)/2

Answer 1

Answer:

sin 30 = 1/2

cosec 45 = √2

answer is D ) ( 1-2√ 2 /2 )