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butalik [34]
3 years ago
11

2cos2ysin2ysimplify​

Mathematics
1 answer:
murzikaleks [220]3 years ago
8 0

Reorder 2 cos (2y) and sin (2y)

= sin (2y)(2 cos(2y))

Remove parenthesis

= sin (2y) * 2 cos (2y)

Reorder sin (2y) and 2

= 2 * sin (2y) cos (2y)

Apply the sine double-angle identity

= sin (2(2y))

Now multiply 2 by 2

<u>= sin (4y) </u>

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The answer is: 8 red marbles!

This is because the equation can be written out like this
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We have to think, what is the difference from the first equation to the second. We know the number 3 times 4 = 12, so we would do the same for the red, 2 times 4=8

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notka56 [123]

Step-by-step explanation:

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Answer:

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