Recent content by cmut

I used the formula for d2y/dx2=(d/dθ dy/dx)/dx/dθ, i further used the quotient rule to simplify the expression and found they are not the same i got 21cosec2θ/49...it seems right but would you think otherwise? i greatly appreciate your feedback Mfb:smile:

I have tirelessly tried to solve this out seems i need smnes help: if x=2+7cosθ and y=8+3sinθ show that d2y/dx2=(-3cosec3θ)/49