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Someone please help me

Someone please help me-example-1
User Achabahe
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1 Answer

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Answer: csc -750 = -2

Explanation:

Keep adding 360 to find your reference angle.

-750 + 360 = -390

-390 + 360 = -30

Your reference angle is -30°

csc -30 = 1/sin -30

Remember your unit circle:

sin 30 = 1/2

Because x is cos and y is sin in quadrant 4 sin is -

sin -30 = -1/2


Substitute:

csc -30 = 1/ (-1/2) >Keep change flip

csc -30 = -2

csc -750 = -2

User Hichem BOUSSETTA
by
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