Q.If x= sin-1(t), y = log(1-t2), find d2y/dx2 when t=1/2 and when t =-8/3.
Q. Element having same atomic number and different mass number are
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Q. The sum of the series 1+1(1+1/n)+3(1+1/n)^2+..... is equal to .............
Q. X,Yand Z are senior engineers. A,B,C,D are ju...
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