If SinA/sinB=m and CosA/CosB=n.Then prove that: Tan A=+or -m/n× root of 1-n^2/m^2-1
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Say A = 60
B = 30
SinA/sinB = sin 60/sin 30 = √3 = m
CosA/cosB = cos 60/cos30 = 1/3 √3 = n
Then just put these numbers in..
B = 30
SinA/sinB = sin 60/sin 30 = √3 = m
CosA/cosB = cos 60/cos30 = 1/3 √3 = n
Then just put these numbers in..
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