if cos 3x = 0 and X is acute find the value of :sin x Cos 2x cot² x- cosec ²x
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cos 3x=0
cos 3x=cos 90
3x=90
x=90/3
x=30
cos 3x=cos 90
3x=90
x=90/3
x=30
rishita8622:
answer 1 upon under root 3
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