October 8, 2015

Homework Help: Math

Posted by Hannah on Monday, March 29, 2010 at 9:38pm.

Find the exact value of the trigonometric function given that

sin u = 5/13 and cos = -3/5

1) sin(u-v)

My teacher said to make two right triangles and then find the missing parts by the pyth theorem.

For the 5/13 triangle I got 12 and the other triangle I got 4. I do not know what to do now.

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