The gradient ofy= 3x\(^2\) + 11x + 7 at P(x.y) is -1. Find the coordinates of P. 

Find the equation of the normal to the curve y= 2x\(^2\) - 5x + 10 at P(1, 7).

Find the value of the derivative of y = 3x\(^2\) (2x +1) with respect to x at the point x = 2. 

Find the radius of the circle 2x\(^2\) - 4x + 2y\(^2\) - 6y -2 = 0. 

Given that f: x --> x\(^2\) - x + 1 is defined on the Set Q = { x : 0 ≤ x < 20, x is a multiple of 5}. find the set of range of F.