If cos(a) = 2/3 What is the value of tan(a)

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Guest May 25, 2015

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+5

Best Answer

cos(a) = x/r = 2/3 ..... so.....

y = ±√[3^2 - 2^2] = ±√[9 - 4] = ±√5

So tan (a) = y/x = ±√5/2

CPhill May 25, 2015

CPhill · Answer 1 · 2015-05-25T10:12:19

cos(a) = x/r = 2/3 ..... so.....

y = ±√[3^2 - 2^2] = ±√[9 - 4] = ±√5

So tan (a) = y/x = ±√5/2