SOLUTION: show me the graph of y=tan2x, step by step and how to solve keypoints

Question 953075: show me the graph of y=tan2x, step by step and how to solve keypoints
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
show me the graph of y=tan2x, step by step and how to solve keypoints
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If x = 0, tan(2x) = tan(0) = 0
So plot a point at (0,0)
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Now draw a tangent curve thru that point.
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To make the plotting of other points easy, let x be pi/4 , x = -pi/4
y = tan(2(pi/4)) = tan(pi/2) = 1 give you point (pi/4,1)
y = tan(2(-pi/4) = tan(-pi/2) = -1 gives you point (-pi/4,-1)
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Graph::

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Cheers,
Stan H.
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