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If cos alpha= 5/13 and cos beta= 35/37, find tan (alpha+beta)?

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please help!
asked Apr 21, 2014 in TRIGONOMETRY by anonymous

1 Answer

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From pythogeron therom  5 , 12 ,13 are sides of  right angle triangle .

Here 13 is hypotenuse , 5 is adjacent  side , 12 is opposite side.

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From pythogeron therom  37, 12 , 35  are sides of  right angle triangle .

Here 37 is hypotenuse , 35 is adjacent  side , 12 is opposite side.

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answered Apr 21, 2014 by friend Mentor

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