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Question Number 166263 by cortano1 last updated on 17/Feb/22
∫−π4π4dxcos2x9+7tan∣x∣dx=?
Answered by mathsmine last updated on 17/Feb/22
=2∫0π4dxcos2(x)9+7tg(x)=2∫01du9+7u=47([9+7u]01)=47
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