`int_1^2 (3x^2+1)dx`=

int_1^3 (3x^2+1)dx =

int_1^4 3x^2dx

Evaluate the following integral: int_1^2(3x)/(9x^2-1)dx

Evaluate as limit of sums: int_1^3 (2x+1)dx

Evaluate: int_1^3(x^2+x)dx

int_0^1(2-3x+x^2)dx

Evaluate: int_(1)^(2)(3x^(2)+2x+1)dx

If int_1^a (3x^2 + 2x +1)dx = 11 then the value of a is

IfI_1=int_0^1 2^(x^2)dx ,I_2=int_0^1 2^(x^3)dx ,I_3=int_1^2 2^(x^2)dx ,I_4=int_1^2 2^(x^3)dx , then which of the following is/are true?

Evaluate: int_1^2 1/((x+1)(x+2))dx (ii) int_1^2 1/(x(1+x^2))dx