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8. (07.01 MC)If the sin 60º = 13, then which statement is true? =2cos 30º =V3, because the cosine and sine are complements523cos 120º =2because the cosine and sine are supplementscos 30º = 0, because the cosine and sine are complementscos 120º = 0, because the cosine and sine are supplements

8 0701 MCIf The Sin 60º 13 Then Which Statement Is True 2cos 30º V3 Because The Cosine And Sine Are Complements523cos 120º 2because The Cosine And Sine Are Supp class=

Sagot :

Note that if the angles are complementary with each other, the sine and cosine are the same.

From the problem, sin 60 = √3/2, the complement of 60 degrees is 30,

so cos 30 is the same as sin 60.

The best answer is Choice A

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