A B O A OB D 1 4 1 4 f sec² (4t) (3 tan(4t))³ dt 1 16 (3 tan (4t))+ + C (3 - tan (4t))+ + C E None of the Above C D 1 16 (3 tan (4t)) + C (3 tan (4t))+ + C

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A: we have to use substitution method to solve this integral. these are basic integral formulae which…

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A: Disclaimer: Since you have asked multiple questions; we will solve the first question for you. If…

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A: Using substitution method Let cosx =t

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A: We can answer the question as below as below.

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A: We will solve the problem