2 years ago

I will give brainliest!!!!

Mathematics

1 answer:

KengaRu [80]2 years ago

5 0

Answer: A, 3 B, 2 C, 6

Step-by-step explanation:

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Using the cosine double angle formula,

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(Note I took the positive case since $\theta$ terminates in the first quadrant)

Using the Pythagorean identity,

$\sin^2 \theta+\cos^2 \theta=1\\\\\sin^2 \theta+\frac{25}{26}=1\\\\sin^2 \theta=\frac{1}{26}\\\\\boxed{\sin \theta=\frac{1}{\sqrt{26}}}$

(Note I took the positive case since $\theta$ terminates in the first quadrant)

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2 years ago

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The measure of an angle is 60° less than nineteen times the measure of its supplement. what is the measure of the angle?

DerKrebs [107]

Two angles are supplementary when they add up to 180 degrees.

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Step-by-step explanation:

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