x = a cos θ, y = b cos θ find dy/dx
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dy/dx = b/a x = a cos θ, y = b cos θ
Step-by-step explanation:
dy/dx
x = a cosθ
y = b cosθ
dx/dθ = a (-Sinθ)
=> dx/dθ = - bSinθ
dy/dθ = b(-sinθ)
=> dy/dθ = - bSinθ
(dy/dθ)/(dx/dθ) = - bSinθ / - aSinθ
=> dy/dx = b/a
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