1.(sin 30°)²+(cos 30°)²=1
2.cot(-660°)=√3/3
3.If cot ∅<0, and cos ∅<0,then ∅ lies in qu...
Mathematics, 18.02.2021 18:40 ozzy1146
1.(sin 30°)²+(cos 30°)²=1
2.cot(-660°)=√3/3
3.If cot ∅<0, and cos ∅<0,then ∅ lies in quadrant III
4.sin 45° cos 45° - cos 45° sin 45° = 0
5.Cos-300°=-1/2
ALL I NEED TO KNOW IS IF EACH ONE IS TRUE OR FALSE ASAP PLZZZ
Answers: 1
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