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Ksivusya [100]
3 years ago
9

How to solve cot x cos2x=2cot x

Mathematics
2 answers:
klio [65]3 years ago
8 0
Cotxcos2x = 2cotx
cos2x = 2cotx/cotx
cos2x = 2
cos2x = 2cos²x - 1
2cos²x - 1 = 2
2cos²x = 2+1
2cos²x = 3
cos²x = 3/2
√cos²x = plus minus √(3/2)
cosx = plus minus √(3/2)
Lyrx [107]3 years ago
7 0
Cot(x)cos(2x) = 2cot(x)
      cot(x)           cot(x)
         cos(2x) = 2

It is undefined.
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Katyanochek1 [597]
Answer:
Step-by-step explanation:
Assuming that for each option, you play the same number of games,x
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y = 20 + 2x
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Option B is to pay $4 each time you go. It means that
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3 years ago
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This year a small business had a total revenue of 48,300 if this is 38% more than their total revenue the previous year what was
riadik2000 [5.3K]

Answer:

$48,300  

100 + 38% = 138% or 1.38

$48,300 / 1.38 = $35,000

Check:

$35,000 * 1.38 = $48,300  

$35,000 * .38 = $13,300 (raise) + salary $35,000 =  $48,300

Step-by-step explanation:

5 0
3 years ago
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For which equation is x=5 a solution? Help me please ty :)
VladimirAG [237]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
243 log 3^4x = 48 , x=...
lilavasa [31]
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3 years ago
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Choices given were:
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3 years ago
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