Q. [ + 50 ]cosec(60°) × sin(90°)

Q. [ + 50 ]cosec(60°) × sin(90°)

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csc 60° x sin 90°

= 1/sin 60° x sin 90°

= 1/(1/2 √3) x 1

= 2/(√3)

= (2√3) / 3

cosec ( 60° ) × sin ( 90° )

$frac{1}{ sin(60^{0} ) } times 1$

$frac{1}{ frac{1}{2 sqrt{3} } } times 1$

$2 sqrt{3} times 1$

$frac{2 sqrt{3} }{3}$

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