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3 years ago

HELP WILL MARK BRAINLEST no files nd no pictures

Mathematics

1 answer:

pantera1 [17]3 years ago

3 0

Answer:

<h3>6xsquared +9x + 12</h3>

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Prove whether the following are identities 2tanh 1/2x / 1−tanh^2 1/2 x = sinh x

Tanzania [10]

Recall that

$\cosh^2(x) - \sinh^2(x) = 1$

Dividing both sides by cosh²(x) gives

$1 - \tanh^2(x) = \mathrm{sech}^2(x)$

Also, recall the identity

$\sinh(2x) = 2\sinh(x)\cosh(x)$

Then

$\dfrac{2\tanh\left(\frac x2\right)}{1 - \tanh^2\left(\frac x2\right)} = \dfrac{2\tanh\left(\frac x2\right)}{\mathrm{sech}^2\left(\frac x2\right)} \\\\ \dfrac{2\tanh\left(\frac x2\right)}{1 - \tanh^2\left(\frac x2\right)} = 2\tanh\left(\dfrac x2\right)\cosh^2\left(\dfrac x2\right) \\\\ \dfrac{2\tanh\left(\frac x2\right)}{1 - \tanh^2\left(\frac x2\right)} = 2\sinh\left(\dfrac x2\right)\cosh\left(\dfrac x2\right) \\\\\dfrac{2\tanh\left(\frac x2\right)}{1 - \tanh^2\left(\frac x2\right)} = \sinh(x)$

4 0

3 years ago

Which number is the answer

const2013 [10]

Answer:

Step-by-step explanation:

32-24 gives you 8

So she only needs one.

7 0

3 years ago

WILL GIVE A BRAINLIEST IF UR CORRECT PLEASE HELP!!

Otrada [13]

A pair of numbers is a solution of y = -3x if the second number, y, is -3 times the first number, x.

What about the pair (-1, 4)? If you replace x with -1, you get y = -3(-1) = 3, not 4. So (-1, 4) is NOT a solution.

For each answer choice, you have to check all three of the given pairs.

(0, 0) is a solution because if x = 0, then y = -3(0) = 0.
(3, -9) is a solution because if x = 3, then y = 3(-3) = -9.

Can you finish it?

7 0

3 years ago

Help please. Would appreciate it

Harlamova29_29 [7]

Because the symbol is greater than and equal to Y it would be a solid line with the blue are to the right of the red line
the correct graph would be B

3 0

3 years ago

Read 2 more answers

3. Find the volume of a

weeeeeb [17]

Answer: 401.88

Step-by-step explanation: math

4 0

3 years ago