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AleksandrR [38]
3 years ago
12

Select the correct answer

Mathematics
1 answer:
Marta_Voda [28]3 years ago
6 0

Answer:

c

Step-by-step explanation:

reason for is because when you add all the like terms you end up with c

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Look at the image. (calculus)
mash [69]
<h3>Answer: Choice H)  2</h3>

=============================================

Explanation:

Recall that the pythagorean trig identity is \sin^2 x + \cos^2x = 1

If we were to isolate sine, then,

\sin^2 x + \cos^2x = 1\\\\\sin^2 x = 1-\cos^2x\\\\\sin x = \sqrt{1-\cos^2x}\\\\

We don't have to worry about the plus minus because sine is positive when 0 < x < pi/2.

Through similar calculations, \cos x = \sqrt{1-\sin^2x}\\\\

Cosine is also positive in this quadrant.

-------------

So,

\frac{\sqrt{1-\cos^2x}}{\sin x}+\frac{\sqrt{1-\sin^2x}}{\cos x}\\\\\frac{\sin x}{\sin x}+\frac{\cos x}{\cos x}\\\\1+1\\\\2

Therefore,

\frac{\sqrt{1-\cos^2x}}{\sin x}+\frac{\sqrt{1-\sin^2x}}{\cos x}=2

is an identity as long as 0 < x < pi/2

5 0
2 years ago
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Is greater than, less than or equal to 125°?
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Answer:

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Step-by-step explanation:

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The distance AND midpoint between M (-2,5) and p (7,-3)
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Answer:

Distance: 12.04159458 or 12.0

Midpoint: (2.5, 1)

Step-by-step explanation:

I used the Distance and the Midpoint Formulas.



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3 years ago
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