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X=tanA+sinA Y=tanA-sinA Eliminate A plzz

X=tanA+sinA
Y=tanA-sinA

Eliminate A plzz

Grade:9

1 Answers

Ravi
askIITians Faculty 69 Points
6 years ago
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

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