3 years ago

Whichofthefollowingdescribe square root of 0 ?

1 answer:

7 0

The square root of zero is zero because if you divide it by its self you get zero. And not to be mean but it was kinda in plain sight. Hope you get it <3.

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Find sin θ if θ is in Quadrant III and tan θ = . 0.958

Leokris [45]

Use the following identities:
$sec^2 = 1 + tan^2 \\ \\ sec = \frac{1}{cos} \\ \\ sin^2 = 1 - cos^2$
Also because the angle is in quadrant 3, sin must be negative.
Therefore
$sin = - \sqrt{1 - \frac{1}{1 + tan^2}}$
Subbing in tan = 0.958
$sin \theta = -0.69178$

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2 years ago

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3 years ago

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