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Trigonometric Ratio(sin,cos,tan)

if y= a(1-cos...

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if y= a(1-cos theta) and x=a(theta+sin theta) then find the value of dy/dx at theta =pie/2

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Q. Find the value of

\frac{d y}{d x}

θ = \frac{π}{4}

x = a e^{θ} (sin θ - cos θ)

y = a e^{θ} (sin θ + cos θ) .

x = 2 (θ + sin θ)

y = 2 (1 - cos θ)

, then value of

\frac{d y}{d x}

\frac{d y}{d x}

x = 2 cos θ - cos 2 θ

y = 2 sin θ - sin 2 θ

.

\frac{d y}{d x}

x = a (cos θ + θ sin θ)

y = a (sin θ - θ cos θ)

x = (cos θ + log tan θ)

y = sin θ

,Find the value of

\frac{d y}{d x}

θ = \frac{π}{4}

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