Given: tanX = sinX/cosX Use the quotient identity and the compound angle formulas for sin (x+y) and cos(x+y) to write a formula for tan(x+y)
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Originally Posted by ahling Given: tanX = sinX/cosX Use the quotient identity and the compound angle formulas for sin (x+y) and cos(x+y) to write a formula for tan(x+y) Well, Now, what would equal? --Chris
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