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Arisa [49]
3 years ago
14

Verify the identity. sin(3pi - x) = sinx

Mathematics
1 answer:
fgiga [73]3 years ago
7 0

we use the angle- sum and difference trigonometric identity to simplify the expression sin(3pi - x). This is equal to sin 3 pi cos x - cos 3 pi sin x. In this case, sin 3 pi  is equal to zero while cos 3 pi is equal to -1. Hence the answer simplified is equal to sin x .
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2 years ago
a radioactive substance has a Decay rate of 5% per hour. if 500 hundred grams are present initially, how much of the substance r
kirza4 [7]
First we have to calculate the half-life
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half-life = 1 hour * 0.30102999566 / log (1 / .95)
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half-life = <span> <span> <span> 13.5134073454 hours
</span> </span> </span>
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=<span> <span> <span> 0.2960023255

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Source:
http://www.1728.org/halflife.htm


</span></span></span>
3 0
3 years ago
(08.01)
dsp73

Answer:

The answer is (2,2)

Step-by-step explanation:

2x + y = 6

x + y = 4


2(2) + y = 6

2 + 2 = 4

6 0
3 years ago
Read 2 more answers
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