How do you use a calculator to evaluate #sin(-0.65)#?

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Apr 1, 2017

Answer:

[email protected], [email protected]#

Explanation:

sin x = - 0.65
Calculator gives -> - 0.65 --> 2nd --> sin -->
x = - [email protected]
Unit circle gives another x that has the same sin value:
#x = 180 - (-40.54) = [email protected]#

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