Which expression is equivalent to cos 150°?
our three choices are:
a. cos 30°
b....
Mathematics, 18.08.2019 18:10 genyjoannerubiera
Which expression is equivalent to cos 150°?
our three choices are:
a. cos 30°
b. cos 330°
c. cos (-30°)
d. cos (-210°)
Answers: 1
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