Math, asked by shaisha, 1 year ago

find the value of cos(-690°)???

Answers

Answered by Anonymous

3

The value of cos-690 is = 0.86625

Anonymous: wlcm

shaisha: hmm

Anonymous: ????

Answered by shreya315

16

cos(-x) =cosx
cos(2×360-30)
cos30=√3/2
...
luv u❤❤❤❤❤

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