3 years ago

I help unit circle questions Help please!

Mathematics

1 answer:

Paha777 [63]3 years ago

5 0

What is the quest? It doesn’t show it

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Helpppp 30 points and brainliest

Law Incorporation [45]

Answer:

i would say it's probably c

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2 years ago

Use a graph in a (-2π, 2π, π/2) by (-3, 3, 1) viewing rectangle to complete the identity.

yaroslaw [1]

First, notice that:

$2\tan (\frac{x}{2})=2\cdot(\pm\sqrt[]{\frac{1-cosx}{1+\cos x})}$

And in the denominator we have:

$1+\tan ^2(\frac{x}{2})=1+\frac{1-\cos x}{1+\cos x}=\frac{1+cosx+1-\cos x}{1+cosx}=\frac{2}{1+\cos x}$

then, we have on the original expression:

$\begin{gathered} \frac{2\tan(\frac{x}{2})}{1+\tan^2(\frac{x}{2})}=\frac{2\cdot\pm\sqrt[]{\frac{1-\cos x}{1+cosx}}}{\frac{2}{1+\cos x}}=\frac{2\cdot(\pm\sqrt[]{1-cosx})\cdot(1+\cos x)}{2\cdot(\sqrt[]{1+cosx})} \\ =(\sqrt[]{1-\cos x})\cdot(\sqrt[]{1+\cos x})=\sqrt[]{(1-\cos x)(1+\cos x)} \\ =\sqrt[]{1-\cos^2x}=\sqrt[]{\sin^2x}=\sin x \end{gathered}$

therefore, the identity equals to sinx

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1 year ago

Polygon Q's area is what fraction of Polygon P's area?

bearhunter [10]

Answer:

1/4

Step-by-step explanation:

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2 years ago

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3/4 + -2/3 in simplest term

balandron [24]

1/12 because first u find a common denominator of 12 then you get 9/12 + (-8/12) and then since one is negative and one is positive you have to subtract and you get positive 1/12

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2 years ago

How to find the maximum number of zeros

Oxana [17]

Answer:

I dont really know what your asking :/

Step-by-step explanation:

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