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integral of e^x * sin(pi/4 + x/2) limit 0 to 2pi
Integral (lim o to 2 pie) e^x.sin([ie/4+x/2) dxlet pie/4+x/2=ton diff w r to x we get dx = 2dtnew limits are pie/4 and 5pie/4integral(lim pie/4 to 5pie/4)e^2(t-pie/4) .sint 2 dt= 2 e^-pie/2 integral (pie/4 to 5pie/4) e^2t sint dt=2e^-pie/2[e^2t(2sint+cost]/4+1=2/5. e^-pie/2[e^5pie/3{2 sin5pie/4-cos5pie/4}-e^2pie/4{2sinpie/4-cospie/4}]=2/5e^-pie/2[cospie/4(e^5pie/2+e^pie/2)-2 sin(e^5pie/2+e^pie/2)]Thanks & RegardsRinkoo GuptaAskIITians Faculty
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