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Mnenie [13.5K]
3 years ago
11

How do I complete this identity? sin(2θ) sin(4θ) cos(2θ) cos(4θ) = ?

Mathematics
1 answer:
egoroff_w [7]3 years ago
8 0

Answer:

  • sin(20) sin(40) cos(40) cos(20)
  • [sin(20)*cos(20)]*[sin(40)*cos(40)]
  • [sin(2*20)/2]*[sin(2*40)/2]
  • [sin(40)*sin(80)]/2

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Can you help me please ​
Mekhanik [1.2K]

Answer:

-3

1.1 ×10

Explanation: when you divide it it comes to .0011

and with significant figures you move the decimal over until it is right after the first number that is not zero. so that would change .0011 to 1.1

also with significant figures if you move the decimal to the right you exponent by the 10 will be negative and if you move it to the left it will be positive. so I. this case we are moving g to the right 3 digits so our exponent will be negative 3.

and because the answer is still really. 0011 you multiply

-3

1.1 × 10

5 0
3 years ago
Which of the following is most likely the next step in the series?<br> I need help pls :’(
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Answer:

The answer is: A

Step-by-step explanation:

The way the numbers are counting around the wheel and the color pattern all match A

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ANSWER:

STEP BY STEP EXPLANATION:
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42 points giv away PLZ ANSWER RN (5/8+3/4) divided by (-2/3 - 5/6)
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Answer:

when you divide you get -11/12

if you have a calculator you could add the 5/8 and 3/4

then add the -2/3 and the -5/6

then divide the first answer by the second answer

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If half of two acres was planted with green beans, the answer would be one acre
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