Find the equation of tangent line

[th3plan]

Homework Statement

Find equation of the tangent line at t=0

x=2sint
y=tant

The Attempt at a Solution

Really don't know where to start, can someone give me the hint, don't solve it, i want to try it, just need a hint

 

[rock.freak667]

To find the equation of any line,you need a point on the line and the gradient on the line.

To find the gradient at t=0,you'll need to find dy/dx (chain rule is helpful here)

and you'll need a point on the line, you want at t=0 ,so can you find the point on the line,(x,y) when t=0?

 

[Dick]

dy/dx=(dy/dt)/(dx/dt). Then go with rock.freak667's advice.