find the value of cos(-690°)???
Answers
Answered by
3
The value of cos-690 is = 0.86625
Anonymous:
wlcm
Answered by
16
cos(-x) =cosx
cos(2×360-30)
cos30=√3/2
...
luv u❤❤❤❤❤
cos(2×360-30)
cos30=√3/2
...
luv u❤❤❤❤❤
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