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u=x^(3/2) -1
du= (3/2)x^(1/2) dx
∫√x [sin( x^(3/2) -1) ]^2 dx
=(2/3)∫(sinu)^2 du
=(1/3)∫(1-cos2u) du
=(1/3)( u -(1/2)sin2u ) + C
=(1/3){ x^(3/2) -1 -(1/2)sin[2(x^(3/2) -1)] } + C
du= (3/2)x^(1/2) dx
∫√x [sin( x^(3/2) -1) ]^2 dx
=(2/3)∫(sinu)^2 du
=(1/3)∫(1-cos2u) du
=(1/3)( u -(1/2)sin2u ) + C
=(1/3){ x^(3/2) -1 -(1/2)sin[2(x^(3/2) -1)] } + C
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