Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) Let `int_0^x f(t)dt=x^3+2x+int_1^xtf(t)dt, then int_0^3f(x)dx` is equal to- - Sarthaks eConnect

Let `int_0^x f(t)dt=x^3+2x+int_1^xt f(t)dt, then int_0^3f(x)dx` is equal to-

`-1/2(45+10log2)`

`1/2(45+5log2)`

`1/2(45-5log2)`

None of these