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3 years ago

I need the answer help plzzzz :)

Mathematics

1 answer:

Arada [10]3 years ago

6 0

Answer:

I think sin would be 330 and Cos would be 60

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

Derive Sinxy = x² + 2xy

bogdanovich [222]

Answer:

$\frac{dy}{dx} = \frac{2x +2 y- ycosxy}{x(cosxy-2)}$

Step-by-step explanation:

Step(i):-

Given

sin xy = x² + 2xy ...(i)

Apply

$\frac{d}{dx} UV = U^{l} V + U V^{l}$

$\frac{d}{dx} x^{n} = nx^{n-1}$

Differentiating equation (i) with respective to 'x', we get

$cosxy \frac{d}{dx} (xy) = 2x + 2( x\frac{dy}{dx} + y(1))$

$cosxy (x\frac{dy}{dx} +y(1)) = 2x + 2( x\frac{dy}{dx} + y(1))$

$cosxy (x\frac{dy}{dx}) + ycosxy = 2x + 2( x\frac{dy}{dx}) +2 y)$

$cosxy (x\frac{dy}{dx}) - 2( x\frac{dy}{dx}) = 2x +2 y- ycosxy$

$(cosxy-2) (x\frac{dy}{dx}) = 2x +2 y- ycosxy$

$\frac{dy}{dx} = \frac{2x +2 y- ycosxy}{x(cosxy-2)}$

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3 years ago