`int_(-2)^(2)(dx)/(sqrt(4+x^(2)))`

int_(0)^(2)(dx)/(x+sqrt(4-x^(2)))

Evaluate the following definite integrals Let int_(0)^(1)(dx)/(sqrt(16+9x^(2)))+int_(0)^(2)(dx)/(sqrt(9+4x^(2)))=ln a

int_(0)^(2)(dx)/(sqrt(4-x^(2)) =?

int_(-2)^(2)(x-3)sqrt(4-x^(2))dx

int_(1)^(2)(dx)/(sqrt(x^(2)+4x+3))

int(dx)/(sqrt(4x^(2)+5))

int(dx)/(sqrt(4x^(2)+3))

int(dx)/(sqrt(4x^(2)+1))

int(dx)/(sqrt(4x^(2)-9))

int(dx)/(sqrt(x^(2)-4))