[qquad [2],[int_(1)^(2)f(x)]],[" If "f(x)" is integrable over "[1,2]," then "1]

If f(x) is integrable over [1,2] then int_(1)^(2)f(x)dx is equal to

If f(x) in inegrable over [1,2] then int_(1)^(2) f(x) dx is equal to :

If f(x) in inegrable over [1,2] then int_(1)^(2) f(x) dx is equal to :

int_(-1)^(2)f(x)dx " where " f(x) = |x+1| +|x|+ |x-1| is equal to

If 2f(x) - 3 f(1//x) = x," then " int_(1)^(2) f(x) dx is equal to

If f(x)=(e^x)/(1+e^x), I_1=int_(f(-a))^(f(a))xg(x(1-x)dx and I_2=int_(f(-a))^(f(a)) g(x(1-x))dx , then the value of (I_2)/(I_1) is (a) -1 (b) -2 (c) 2 (d) 1