Answers

2014-07-03T22:12:51+05:30
Integral cos√x dx
put √x = t
x=t²
dx=2tdt
integral 2tcost dt = 2[t integral cost - integral {integral cost d(t)/dt} ]
 = 2[tsint - integral sint]
= 2[tsint + cost]
= 2(√x)sin(√x) + 2cos(√x)
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