b) Let f [-T, π] → R be the function defined by N=∞ f (2) = Σ sin(nx) sin(x) sin(2x) sin(3x) + + +... 2n 2 4 8 n=1 Evaluate ƒ ƒ²(x) dx and ſ™ f(x) sin(3x) dx -π

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A:

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A:

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A:

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A: AS PER GUIDELINES I CAN ATTEMPT ONLY FIRST QUESTION

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