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2 years ago

Make y the subject of this formulae X=a-2by^2

Mathematics

2 answers:

Lostsunrise [7]2 years ago

7 0

Answer:

y = ± $\sqrt{\frac{(a-x)}{2b}}$

Step-by-step explanation:

x = a - 2by²

Take -2by² to the left side.

x + 2by² = a

Take x to the left side.

2by² = a - x

Divide both sides by 2b.

y² = $\frac{(a-x)}{2b}$

Now remove the y square.

y = ± $\sqrt{\frac{(a-x)}{2b}}$

Pani-rosa [81]2 years ago

3 0

Answer:

See below

Step-by-step explanation:

x=a-2by^2 Subtract 'a' from both sides

x -a = - 2 by^2 divide both sides by - 2b

(a-x)/2b = y^2 sqrt both sides

y = +- sqrt ( (a-x)/2b))

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3 years ago

Solve: 2cos(x)-square root 3=0 for 0 less than x less than 2 pi

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Answer:

The general solution of $cos x = cos(\frac{\pi }{6})$ is

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The general solution values

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Step-by-step explanation:

Explanation:-

Given equation is

$2cosx-\sqrt{3} =0 for 0$

$2cosx =\sqrt{3}$

Dividing '2' on both sides, we get

$cos x =\frac{\sqrt{3} }{2}$

$cos x = cos(\frac{\pi }{6})$

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x = 2nπ± $\frac{\pi }{6}$

put n=0

$x = - \frac{\pi }{6} and x = \frac{\pi }{6}$

Put n=1

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And so on

But given 0 < x< 2π

The general solution values

$x = - \frac{\pi }{6} and x = \frac{\pi }{6}$

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3 years ago

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