3 years ago

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Mathematics

2 answers:

ivann1987 [24]3 years ago

8 0

Answer:

Step-by-step explanation:

Please give me brainliest. Have a good day. :)

Hoochie [10]3 years ago

7 0

Answer:

Step-by-step explanation:

2 just divide by 2 or multiple

also please give me the brainliest

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melamori03 [73]

2.86
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Given that cos(theta) = 8/17 and that theta lies in Quadrant IV, what is the exact value of sin 2(theta)?

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=========================================================

Explanation:

Use the pythagorean trig identity $\sin^2(\theta)+\cos^2(\theta) = 1$ and plug in the fact that $\cos(\theta) = \frac{8}{17}\\\\$

Isolating sine leads to $\sin(\theta) = -\frac{15}{17}\\\\$ . I'm skipping the steps here, but let me know if you need to see them.

The result is negative because we're in quadrant 4, when y < 0 so it's when sine is negative.

Therefore,

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2 years ago

Please help me?<br><br> please and thank you!

JulsSmile [24]

Answer:

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Step-by-step explanation:

change divide sign to multiply by reciprocating

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