L-1 (s² + a²y² (sin at + at cos at] 2a

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A: Use substitution method

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A: We will answer the first question since exact one was not specified. Please resubmit the question…

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A: You are correct

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A: dsecθdθ= sec θ.tan θ

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A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

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A: Solving the problem by finding the integrand.

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