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kogti [31]
2 years ago
15

Which of the following statement must be true?I WILL MARK THE BRAINIEST

Mathematics
1 answer:
Anettt [7]2 years ago
5 0

Answer:

d) XY > RS

Step-by-step explanation:

When comparing triangles, the angle opposite to the side in question determines the length. In this case 99 is greater than 75. Since XY is the side opposite to 99, it is the larger side

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What would be the fraction of the amount the hundred chart is shaded in? Reduce if possible!
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Prove that<br> 1+cosθ+sinθ/1+cosθ-sinθ = 1+sinθ/cosθ
marusya05 [52]

Step-by-step explanation:

(1 + cos θ + sin θ) / (1 + cos θ − sin θ)

Multiply by the reciprocal:

(1 + cos θ + sin θ) / (1 + cos θ − sin θ) × (1 + cos θ + sin θ) / (1 + cos θ + sin θ)

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(1 + cos θ + sin θ)² / [ (1 + cos θ)² − sin² θ) ]

Distribute and simplify:

(1 + cos θ + sin θ)² / (1 + 2 cos θ + cos² θ − sin² θ)

[ 1 + 2 (cos θ + sin θ) + (cos θ + sin θ)² ] / (1 + 2 cos θ + cos² θ − sin² θ)

(1 + 2 cos θ + 2 sin θ + cos² θ + 2 sin θ cos θ + sin² θ) / (1 + 2 cos θ + cos² θ − sin² θ)

Use Pythagorean identity:

(2 + 2 cos θ + 2 sin θ + 2 sin θ cos θ) / (sin² θ + cos² θ + 2 cos θ + cos² θ − sin² θ)

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Factor:

(1 + cos θ + sin θ (1 + cos θ)) / (cos θ (1 + cos θ))

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3 0
3 years ago
Can someone tell me the answer please
Temka [501]

Answer:

C

MARK ME BRAINLIEST :D

8 0
3 years ago
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Simplify and Explain Sum:<br> -7 + 9 - 3 * 6 -(5 + 9) ÷ 7
Makovka662 [10]

Answer:

-18

Step-by-step explanation:

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3*6

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-18

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8 0
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