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yawa3891 [41]
3 years ago
9

-7(-13+19) distributive property

Mathematics
1 answer:
Vanyuwa [196]3 years ago
6 0

Answer:

-42

Step-by-step explanation:

i put two documents for you. check them out and try to solve some math problems like this. hope it helps!:)

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###

Otherwise, you can derive the same result. Let \theta=\sin^{-1}\dfrac12, so that \sin\theta=\dfrac12. \sin^{-1} is bounded, so we know -\dfrac\pi2\le\theta\le\dfrac\pi2. For these values of \theta, we always have \cos\theta\ge0.

So, recalling the Pythagorean theorem, we find

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as expected.

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