Question

     Please evaluate : 12* ∫ { [ cot (3X) ] ^4 } *{ [ csc (3X)...

  1.      Please evaluate : 12* ∫ { [ cot (3X) ] ^4 } *{ [ csc (3X) ] ^2 } *dX

      as X varies from 0 radians to (π/12) radians   

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solution )4. (esc (3x)) ² da TV = 12 cot“ (3x).csc(3x)da put cot (3x) = t differentiating with respect tox cot (33) de - cose= 12 [ 15] = 4 [timents - 1] = 4x not defined = not defined Cie. infinite os) 12 .:.125 [cot (3x)]?. [esc (33) dx = not defin

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