cos 60° cos 30° - sin 60° sin 30°
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2
Answer:
cos 60° cos 30° - sin 60° sin 30°
(1/2)(√3/2) - (√3/2)(1/2)
√3/4 - √3/4 = 0
Hope it will help you...
Answered by
1
Answer:
1/2 × root 3/2 - root 3/2 × 1/2
= root 3/4 - root 3/4
= root 3 - root 3 / 4
= 0/4
= 0.
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