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labwork [276]
3 years ago
6

Simplify (sinA +cosA) (sinA-cosA) ​

Mathematics
1 answer:
kvv77 [185]3 years ago
5 0

Answer:

-cos(2A)

Step-by-step explanation:

We know that (a+b) (a-b) = a^2-b^2

So it means we can simplify to sin^2(A)-cos^2(A) and we know cos^2(A) - sin^2(A) = cos(2A) but we will just multiply by -1 and we get - cos(2A)

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blsea [12.9K]
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⇒ 12*x= 120
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Final answer: x=10.

Hope this helps~
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8.4

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Mariulka [41]

Answer:

0.0195 = 1.95% probability that on any given day only John gets homework

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3 0
3 years ago
Can you help me show the work and give me the answer?
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More "work"...

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