Question

Multiple choice question
sin90°
a) 2 sin 30° cos 60° b) 2 sin 30°sin 60°
c) 2 Sin 45° cos 45º d)2 cos 60°.cos 30°​

Answer 1

Answer:

THE CORRECT ANSWER IS C

EXPLANATION:-

SINCE SIN 45 = COS 45 = 1/√2

NOW AS PER QUESTION 2 SIN 45 * COS 45

THEREFORE 2*1/√2*1/√2

= 2* 1/2

= 1 i.e. THE VALUE OF SIN 90