[" find a and "b],[" if "f(x){[x^(2)+3x+a,,x<=1],[bx+2,,x>1]],[" when "f(x)" is dyferentiable at "x=1]

If f(x)=x^2-3x+1 , then find f(-2)

Find the values of a and b , if the function f(x) defined by f(x)={x^2+3x+a ,\ \ xlt=1b x+2,\ \ \ \ \ \ \ \ \ \ x >1 is differentiable at x=1 .

If f(x)=x^2-3x+1 , then find f(1) .

If f(x)=x^2-3x+1 , then find f(0) .

If f(x)=3x^2-x+1 , then find f(-1)

If f(x)=3x^2-x+1 , then find f(-2) .

If f(x)=3x^2+2x+1 , then find f(x-1)

if f'(x) = 3x^2-2/x^3 and f(1)=0 , find f(x).