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plz help me to solve this...

plz help me to solve this...

Question Image
Grade:12th pass

1 Answers

ng29
1698 Points
6 years ago
its done final answer will be in terms of Q(theta)
put (phi)1/2 = sint for 1 integral and  cost for second integral 
when u replace d phi by dt  it forms  t sin2t  for first one 
so on putting the limits and integrating we get the answer and dont forget to change the limits according to substitutuion above in each integral
 
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