Cos(2x)cos(x)+sin(2x)sin(x)=1

1 answer:

Finger [1]3 years ago

5 0

Answer:

=cos(x) use basic properties of sosine (addition and subtraction) cos(a-b)=cos(a)cos(b)+sin(a)sin(b)

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RideAnS [48]

Tens place is 2
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3 years ago

SashulF [63]

Answer:

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Step-by-step explanation:

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Alexandra [31]

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3 years ago

horrorfan [7]

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3 years ago

Crazy boy [7]

Answer:

180

Step-by-step explanation:

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7 0

2 years ago