integrate: 1/ sin(x-a)sin(x-b) dx

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the solution is here if u can see the pic

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the solution is here if u can see the pic

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the solution is here if u can see the pic

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the solution is here if u can see the pic

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the solution is here if u can see the pic

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the solution is here if u can see the pic

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the solution is here if u can see the pic

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the solution is here if u can see the pic

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i cant see ny pic..

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here is the pic

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no pic is available..

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Multiply and divide by cos(a-b) Write cos(a-b) =cos[(x-b)-(x-a)] expand it , and see the fun .

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