# Thread: Parametric equation urgent help

1. ## Parametric equation urgent help

hey the question was to find the value of t where 0<=t<=pi where the cruve intersects y=2x

where
x= cost
y= 2sint

i am getting two values which do work can someone please verify this because the question said specifically find the value of t

2. ## Re: Parametric equation urgent help

i am gettin pi/4 and 3pi/4

3. ## Re: Parametric equation urgent help

y = 2x

2sint = 2(cost)

sint = cost only at t = pi/4 in the given interval

thanks