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August 21, 2014

August 21, 2014

Posted by **anonymous** on Monday, January 8, 2007 at 9:45pm.

I KNOW THE ANSWER IS PI/2 AND 3PI/2, BUT WHY AREN'T THEY PLUS OR MINUS.

If they are tangent, they have the same coordinates, and the same slope.

y=x+b

y=x+bsinx

subtracting the first from the second..

0= b(sinx-1)

sinx=1 x=PI/2 or x=-3PI/2

slope:

both 1. The answers are pI/2, -3PI/2

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