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Semmy [17]
3 years ago
6

What is the slope of the line tangent to the curve y+2 = (x^2/2) - 2siny at the point (2,0)?

Mathematics
2 answers:
kirza4 [7]3 years ago
6 0
<span>, y+2 = (x^2/2) - 2sin(y) so we are taking the derivative y in respect to x so we have dy/dx use chain rule on y so y' = 2x/2 - 2cos(y)*y'

</span><span>Now rearrange it to solve for y' y' = 2x/2 - 2cos(y)*y' 0 = x - 2cos(y)y' - y' - x = 2cos(y)y' - y' -x = y'(2cos(y) - 1) -x/(2cos(y) - 1) = y'
</span><span>we know when f(2) = 0 so thus y = 0 so when f'(2) = -2/(2cos(0)-1)
</span><span>2/2 = 1
</span><span>f'(2) = -2/(2cos(0)-1) cos(0) = 1 thus f'(2) = -2/(2(1)-1) = -2/-1 = 2 f'(2) = 2
</span>
Ymorist [56]3 years ago
5 0

Answer:

The slope of the line tangent to the given curve at the point (2,0) is 2/3.

Step-by-step explanation:

The given equation is

y+2=(\frac{x^2}{2})-2\sin y

we need to find the slope of the line tangent to the given curve at the point (2,0).

slope=\frac{dy}{dx}_{(2,0)}

Differentiate given equation with respect to x.

\frac{dy}{dx}+0=\frac{2x}{2}-2(\cos y)\frac{dy}{dx}

\frac{dy}{dx}=x-2\cos y\frac{dy}{dx}

\frac{dy}{dx}+2\cos y\frac{dy}{dx}=x

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

Divide both sides by(1+2cos y).

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

Substitute x=2 and y=0.

\frac{dy}{dx}_{(2,0)}=\frac{2}{1+2\cos (0)}

\frac{dy}{dx}_{(2,0)}=\frac{2}{1+2(1)}

\frac{dy}{dx}_{(2,0)}=\frac{2}{3}

Therefore the slope of the line tangent to the given curve at the point (2,0) is 2/3.

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