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Illusion [34]
2 years ago
10

Given that sin x = cos 2x find the value of x​

Mathematics
1 answer:
natali 33 [55]2 years ago
7 0

Answer:

The most straightforward way to obtain the expression for cos(2x) is by using the "cosine of the sum" formula: cos(x + y) = cosx*cosy - sinx*siny. cos(2x) = cos² (x) - (1 - cos²(x)) = 2cos²(x) - 1. = 2cos²(x) - 1.

Step-by-step explanation:

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3 years ago
ms. lorenz needs to rent a car for 3 days. she can choose from two plans. plan a costs $60 per day. plan b costs $30 per day plu
maw [93]

Answer:

distance driven < 300 miles.

Step-by-step explanation:

Plan A

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m < 120/ 0.4

m < 300  

Answer

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3 0
3 years ago
During a week in January in Jefferson City, MO, the daily high temperatures were -2˚F, 12˚F, 5˚F, -4˚F, 20˚F, 16˚F, and -12˚F. W
Alexeev081 [22]

Answer:

50-20+5= 35

Step-by-step explanation:

3 0
3 years ago
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iren2701 [21]

Answer:

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I hope this helps!

Credit goes to: calculatorsoup.com

4 0
3 years ago
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Answer:

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Step-by-step explanation:

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x =  53 degrees.

8 0
3 years ago
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