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2 years ago

Is 2cosx=cos2x ?i have misinterrupted

Mathematics

2 answers:

faltersainse [42]2 years ago

7 0

no it isn't. 2cos(x) is 2 multiplied by cos(x), cos (2x) is cos(2 multiplied by x) meaning 2x is the angle you're taking the cosine of. if you want to know what cos(2x) look up the double angle rule.

Pavlova-9 [17]2 years ago

7 0

Answer:

No they are not the same.

Step-by-step explanation:

No, they are not the same.

2 cos x you have a vertical stretch and the 2 is called the Amplitude.

cos 2x the 2 is like a horizontal compression and this alters the period of cos, which the new period will be at pi instead of 2pi

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Answer:

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Step-by-step explanation:

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3 years ago

0.376×800=(0.376×_____)×100 =______×100 =______

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0.376*800

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3 years ago

Amy received a $80 gift card for a coffee store. She used it in buying some coffee that cost $8.24 per pound. After buying the c

SVEN [57.7K]

Answer:

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Step-by-step explanation:

Given that:

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Solution:

Let the number of pounds of the coffee bought = $x$ pounds

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Writing the equation as per question statement:

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3 years ago

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3 years ago

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Sladkaya [172]

Answer:

a. 2116 miles

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Step-by-step explanation:

The round-trip distance is the sum of the distances there and back. It is double the one-way distance.

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2 years ago

Is 2cosx=cos2x ?i have misinterrupted​

Is 2cosx=cos2x ?i have misinterrupted