Question

Evaluate :-

2tan 2 60+4 sin2 60−2 tan2 30.sec 2 30/
2sin2 45−5 sin90+3 cos2 90−cos 60

Answer 1

Step-by-step explanation:

tan 60° = √3

sin 60° = √3/2

tan 30° =1/√3

sec 30°= 2/√3

sin 45°= 1/√2

sin 90° = 1

cos 90°= 0

cos 60°=1/2

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