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murzikaleks [220]
3 years ago
15

How to evaluate cos2 pi - sin pi/2

Mathematics
1 answer:
ra1l [238]3 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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m_a_m_a [10]
In the given question, there are several information's of immense importance. using these given information's the required answer can be easily deduced. It has already been given that Tom has a total amount of $240. He bought 22 boxes of drinks at $4 per box. rest he spent on buying the 8 boxes of sandwiches.
A. The amount of money the drinks cost in total = (22 * 4) dollars
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So Tom spent $88 on the drinks
B. Now we have to first find the amount spent by Tom on the box of sandwiches.
Total amount spent by Tom on sandwiches = (240 - 88) dollars
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Then the amount of money spent by Tom for buying 1 box of sandwich = (152/8) dollars
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So Tom had to pay $19 for buying a single box of sandwich.
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3 years ago
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