tangent equation

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chaarleey

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May 5, 2015
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Hi! need help solving this problem:

find an equation for the tangent T to the line S in point P

S: sin(pi(x+y) + 18xy = 4(x+y) P:(1/6 , 1/3)

I think i should take the derivative but i dont know how to start really.
 
chaarleey said:
Hi! need help solving this problem:

find an equation for the tangent T to the line S in point P

S: sin(pi(x+y) + 18xy = 4(x+y) P:(1/6 , 1/3)

I think i should take the derivative but i dont know how to start really.
Click to expand...

Yes - you should calculate the derivative of the function at the given point.

What property of the tangent line would be equal to that value?
 
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