2011 CSSA
1d) The graphs x+2y-1=0 and curve y=1-x^3 intersect at (1,0). find the size of the acute angle between the line and the tangent to the curve at the point of intersection. << which formula do i use for this? and how do i apply it?
n
4a) Use mathematical induction to prove that Σ ((r^2)+1)r! =n(n+1)!
r=1
1d) The graphs x+2y-1=0 and curve y=1-x^3 intersect at (1,0). find the size of the acute angle between the line and the tangent to the curve at the point of intersection. << which formula do i use for this? and how do i apply it?
n
4a) Use mathematical induction to prove that Σ ((r^2)+1)r! =n(n+1)!
r=1