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Annette [7]
2 years ago
10

4. Which expression is equivalent to sin(50)º?

Mathematics
1 answer:
jasenka [17]2 years ago
3 0

Answer:

cos(400)

Step-by-step explanation:

Useful things:

Cofunction identity: sin(x)=cos(90-x)

Sine and cosine have period of 360 degrees.

So sin(50)=cos(40) by cofunction identity.

Since cosine has period of 360 degrees then cos(40)=cos(360+40).

That simplifies to cos(400).

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Oduvanchick [21]

The angle RAT which is made with AR and AT line and shown in the figure of protector, measures 30 degrees.

<h3>How to measure the angle in protector?</h3>

Protector is the most useful device to measure the angle between two lines. To measure the angle between two lines using the protector following steps is followed:

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In the given figure, The angle Between AR and AT line is 30 degrees shown in protector.

Thus, the angle RAT which is made with AR and AT line and shown in the figure of protector, measures 30 degrees.

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brainly.com/question/1161640

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Step-by-step explanation:

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