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(Solved): Find the exact value of each of the following under the given conditions. tan\alpha =-(8)/(15),\alph ...



Find the exact value of each of the following under the given conditions.

tan\alpha =-(8)/(15),\alpha

lies in quadrant II, and

cos\beta =(3)/(4),\beta

lies in quadrant I a.

sin(\alpha +\beta )

b.

cos(\alpha +\beta )

c.

tan(\alpha +\beta )
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