Grade 9Trigonometry
X=tanA+sinA
Y=tanA-sinA
Eliminate A plzz
X=tanA+sinA
Y=tanA-sinA
Eliminate A plzz
Y=tanA-sinA
Eliminate A plzz
1 Answer
Ravi
Take Sin A common from both and divide X and Y to get X/y=(1-cosA)/(1+cosA)
Apply Componendo and dividendo to get the value of cos A in terms of X and Y
From this find SinA
Put sin A and Cos A in the trig identity sin2A+cos2A=1 to getb an equality without A and just in terms of X and Y
Apply Componendo and dividendo to get the value of cos A in terms of X and Y
From this find SinA
Put sin A and Cos A in the trig identity sin2A+cos2A=1 to getb an equality without A and just in terms of X and Y
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