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const2013 [10]
3 years ago
11

Please help! i don't know what to do

Mathematics
1 answer:
Strike441 [17]3 years ago
6 0

Answer:

0.5* sin(x)

Step-by-step explanation:

As well known  sin (2A)= 2sin(A)*cos(A)

As in our case A=x/2  => cos(x/2*sin(x/2)=1/2*sin(x)=0.5*sin(x)

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Which of the following is a like radical to 3 sqrt 7x?
san4es73 [151]

Answer:

Options A and B

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Step-by-step explanation:

Like radicals are similar to like terms.

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Hence, from the given options, like radicals to 3\sqrt{7x} are:

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6 0
3 years ago
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Answer:

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not sure if this is the answer ???

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How do you find the perimeter
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Hope this helps!


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