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Mathematics
OpenStudy (anonymous):

are cos^-1(x) and (cos(x))^-1 the same?, i mean cos^-1(x) = (cos(x))^-1?

OpenStudy (anonymous):

Im going to say no as cos^-1 is the inverse cosine function where (cos(x))^-1 should mean in the denominator such as 1/(cos(x))

OpenStudy (anonymous):

now, similarly would cos^-2(x) be equal to (cos(x))^-2? then why is it this way?

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