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murzikaleks [220]
4 years ago
15

How to evaluate cos2 pi - sin pi/2

Mathematics
1 answer:
ra1l [238]4 years ago
4 0

Answer:

  • cos 2π - sin(π/2)

cos 2π is the same as cos 0 wich is 1

sin(π/2) is 1

  • 1-1 = 0

the expression equals 0

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What is two thirds of 66 ?
Rina8888 [55]
The word of means multiply

Problem becomes \frac{2}{3} (66)

Since we don't know what  go underneath the 66 , we will put a 1

Problem becomes \frac{2}{3}( \frac{66}{1})

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\\ \\ MixedFraction:  \frac{132}{3}

Divide:  \frac{132}{3} and that gives you a quotient of: 44

Therefore your answer would most likely be: 44

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3 years ago
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Olegator [25]

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4 years ago
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vredina [299]

Answer:

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8 0
3 years ago
HELP:Sarah, who is 19 feet away from Justin, has a ball in her hand. Sarah throws the ball away from Justin at a speed of 5 feet
Paha777 [63]

Answer:

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