Find the equation of tangent line

  • #1
93
0

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
 
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  • #2
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?
 
  • #3
dy/dx=(dy/dt)/(dx/dt). Then go with rock.freak667's advice.
 

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