Questions asked by Dolly C.

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• Given: f(x)=1-3x^2 and g(x)=√ 4 − x, find (f o g) (2) and (g o f) (-2), how do you solve this?
  
• ?Find the value of f(x)=-16x^3+18x^2-x+2 at x=-2
  
• How do you write this expression in the form of a+bi? (3-2i)^3
  
• How do I find y as a function of x? The constant C is a positive number. ln(y-3)=ln2x^2+lnC
  
• How do i establish the identity? I am not that great a trig. sinA cscA - sin^2A = cos^2A