Given tan x = \(\frac{a}{b}\) The value of the expression b cos 2x a sin 2x Now consider b cos 2x a sin 2xWatch Video in App This browser does not support the video element 0 k 10 k AnswerLim x→0 ex (e tanxx 1) / (tan x x) this is nothing but the standard limit limit x tends to 0 (e x 1)/x = 1 where x = tanx x so it is equal to 1 so the answer is 1 and not 1/2 we can also check this by L hospital rule as it is 0/0 We are all IITians and here to help you in your IIT JEE preparation
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