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find the values of cos^(-1)(1) and I know the answer is 0 but I don't know how to get there...
Quote: Originally Posted by aamk23 find the values of cos^(-1)(1) and I know the answer is 0 but I don't know how to get there... cos y =1 From the cosine graph , y=0 when it is maximum (1) .
ok thanks so much!