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8 March, 23:29

5. What is the value of tan 45°?

A. √2/2

B. √3/2

C. 1

D. √3

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Answers (1)
  1. 8 March, 23:42
    0
    If we use the unit circle:

    sin 45° = √2/2

    cos 45° = √2 / 2

    tan x = sin x / cos x

    tan 45° = sin 45° / cos 45° = √2 / 2 : √2 / 2 = 1

    Answer: the value of tan 45° is C) 1
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