Answer:
(4) 35°.
Step-by-step explanation:
The value of the angle is given by the following inverse trigonometric function:
The right answer is (4) 35°.
m∠C = 35°
Data
From the figure, it can be seen that a right triangle is formed where CA is the hypotenuse and CD is one of the legs.
From definition:
cos(C) = adjacent/hypotenuse
cos(C) = CD/CA
cos(C) = 23/28
m∠C = arccos(23/28)
Solve the following expression:
-Calculate to the power of :
Therefore, the final answer is .
Your answer is -3
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