prove trigonometric identity

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Answers 1

Step-by-step explanation:

Explanation:

left hand side :2csc2x

recall that csc x= 1/sin x

2csc 2x =2*1/sin 2x =2/2*sin x*cos x

=1/sin x*cos x = 1/sin x*1/cos x

=sec x*csc x

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