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12 votes
12 votes
Type the correct answer in the box.Use numerals instead of words. If necessary, use / for the fraction bar.AABC is a right triangle in which ZB is a right angle, AB= 1, AC=2, and BC= √3.cos Cx sin A =10tum. All rights reserved.ResetNext60°B

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User Sezerug
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1 Answer

9 votes
9 votes

According to the length of each side, this triangle satisfies the Pitagoras Theorem, therefore is a rectangle triangle, look


2^2=(√(3)\text{ })^2+1^2

Now


cos(C)=(√(3))/(2),\text{ }sin(A)=(√(3))/(2)\text{ }\Rightarrow cos(C)* sin(A)=((√(3))/(2))^2=(3)/(4)

The answer is 3/4.

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User Yaman
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