3 years ago

If half of the pie below is eaten what fraction remains

Mathematics

1 answer:

Maksim231197 [3]3 years ago

5 0

Is there a picture we can see if it’s a whole pie than 1/2

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Any time you inscribe a square in a circle or circumscribe a right triangle by a circle, which type of line or segment will alwa

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Step-by-step explanation:

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3 years ago

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emmasim [6.3K]

First, we expand the equation:

$cos^{2}A+2cosAcosB+ cos^{2}B+sin^{2}A+2sinAsinB+sin^{2}B$

Then, we combine certain terms in order to simplify them using trigonometry identities.

$cos^{2}A+sin^{2}A+cos^{2}B+sin^{2}B+2cosAcosB+2sinAsinB$

Note these identities:
Pythagoran relation: $cos^{2}A+sin^{2}A = cos^{2}B+sin^{2}B=1$
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Thus, if we apply these identities, the simplified equation would be:
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3 years ago

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17, 18, 19

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It should be A. Find this by plugging the second equation into the first one. Then, try out each x-value from the answers to see which one makes sense

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Answer:

Step-by-step explanation:

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