3 years ago

5. What is the value of tan 45°? A. √2/2 B. √3/2 C. 1 D. √3

1 answer:

4 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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