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If int_0^((pi)/(2))(dx)/(1+tanx+cotx)=a and int_0^(pi/2)(tanx)/(1+tanx+cotx)=b then which of the following is/are correct |
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Answer» `a=(PI)/(8)` `0ltunderset(0)overset((pi)/(2))(f)(dx)/(1+tanx+cotx)leunderset(0)overset((pi)/(2))(f)(dx)/(1+2)` `:.""0ltale(pi)/(6)` `{:(b=underset(0)overset((pi)/(2))(f)(tanxdx)/(1+tanx+cotx),"Apply (King)":.,2b=underset(0)overset((pi)/(2))(f)(tanx+cotx+1-1)/(1+tanx+cotx)dx,),(2b=underset(0)overset((pi)/(2))(f)dx-a,:.b=(pi)/(4)-(a)/(2),:.(pi)/(6)leblt(pi)/(4).,):}` |
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