if sin(50degree – 3/2a) = cos(3 alpha – 50degree ) , then findthe value of alpha and hence evaluate tan alpha.secalpha.sinalpha – cotalpha.sinalpha.cosalpha

Question

Shubham Kamleshbhai Patel · Answer

This is a easy one. U need to use here cos a = sin ( 90 - a ) sin ( 50° – 3/2 a ) = cos ( 3a – 50° ) => sin ( 50° – 3/2a ) = sin ( 120° – 3a ) U will the value of a = 60° Thus, applying a in tan a x sec a – cot a x sin a x cos a => root 3 x 2 – 1/root 3 x root3 / 2 x ½ => 4 root 3 – 1 / 4 Do check the answer and reply back......

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if sin(50degree – 3/2a) = cos(3 alpha – 50degree ) , then findthe value of alpha and hence evaluate tan alpha.secalpha.sinalpha – cotalpha.sinalpha.cosalpha

if sin(50degree – 3/2a) = cos(3 alpha – 50degree ) , then findthe value of alpha and hence evaluate tan alpha.secalpha.sinalpha – cotalpha.sinalpha.cosalpha

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