Find the value of ∫∞0x e−xdx
The differential equation of the family of curves y=a cos(x+b) is
[MP PET 1993]
Int dx/√2ax-x,^2 = a^n sin^-1[x/a-1] .
The value of n is (a) 0 (b) —1 (c) 1 (d) none of these. You may use dimensional analysis to solve the problem.