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Post-UTME Mathematics 2013 Objective — Question 65

Question 65 of 100 from the Post-UTME Screening (Post-UTME) Mathematics 2013 Objective paper, with the correct answer and a full explanation.

Find the trigonometric function value of Cos(315°)

A. √2/2Correct
B. √2
C. 1/√2
D. undefined

Explanation

315°=360°-45°, so Cos315°=Cos45°=√2/2.

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