Question

differentiate x= a(t-sint),y=a(1+cost) find second derivative ​

Answer 1

x=at-asint

dx/dt=adx/dt-adsint/dt

dx/dt=a-acost

dx/dt=a(1-cost)

y=a+acost

dy/dt=a*1+adcost/dt

dy/dt=a+a(-sint)

dy/dt=a-asint