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Varvara68 [4.7K]
3 years ago
15

Csc A - sin A = A. (cos^2A) / (sinA) B. (1 - sinA) / (sinA) C. (1 - sinA) / (cosA)

Mathematics
2 answers:
igor_vitrenko [27]3 years ago
5 0

Answer:

1st option

Step-by-step explanation:

Using the identities

csc x = \frac{1}{sinx}

sin² x + cos²x = 1 ⇒ cos²x = 1 - sin²x

then

csc A - sinA

= \frac{1}{sinA} - sinA

= \frac{1-sin^2A}{sinA}

= \frac{cos^2A}{sinA}

julsineya [31]3 years ago
4 0

Answer:

A) \frac{cos^2A}{sinA}

Step-by-step explanation:

cscA-sinA\\\\\frac{1}{sinA}-sinA\\ \\\frac{1}{sinA}-\frac{sin^2A}{sinA}\\ \\ \frac{1-sin^2A}{sinA}\\ \\\frac{cos^2A}{sinA}

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3rd option.

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Answer:

$88.75

Step-by-step explanation:

since he bought two tickets for $25.5 each you have to do 2(25.50) and since he also spent $10 and $27.75 you have to add that as well.

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Answer:

x=49

Step-by-step explanation:

2(3x+1)=3(2−x)

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6x+2+3x=−3x+6+3x

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Step 3: Subtract 2 from both sides.

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Step 4: Divide both sides by 9.

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3 0
3 years ago
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Answer:

x = 12

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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