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How do you evaluate $sin (- 45)$ $sin (-45)$ ?

1 Answer

Nov 30, 2015

Evaluate sin (-45)

Explanation:

Trig Table of special arcs and unit circle give -->
$sin (- 45) = - sin (45) = - \frac{\sqrt{2}}{2}$ $sin (-45) = - sin (45) = - sqrt2/2$

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