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`int tan^(4) x sec^(2) x dx `का मान ज्ञात कीजिये | |
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Answer» माना `I= int tan^(4) x sec^(2) x dx` माना `tan x = t" "therefore" "sec^(2) x dx = dt` `therefore" "I = int t^(4) dt = (1)/(5)t^(5) = (1)/(5)tan^(5) x` |
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