Find `dy/dx,if y=12(1-cost),x=10(t-sint).pi/2lttltpi/2`

Explanation

`dy/dx=12[0+sint)=12sint,dx/dt=10(1-cost)thereforedy/dx=(dx//dt)/(dx//dt)=(12sint)/(10(1-cost))=(6xx2sin(1//2)cos(1//2))/(5xx2sin^2(1//2))=6/5cot(1//2)`