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Brilliant_brown [7]
2 years ago
15

What does (2/5 + 1/5) - 3/10 equal?

Mathematics
1 answer:
Vedmedyk [2.9K]2 years ago
7 0
3/5-3/10
= 6/10-3/10
=3/10
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Answer:

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For any angle \theta, we have that:

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Since the angle is in the first quadrant, the cosine is positive.

\cos{\theta} = \frac{\sqrt{15}}{4}

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3 years ago
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