tan^-1(tan(-6))and tan^-1(tan(10))is equal to??
Answer (1)
6th Jan, 2020
tan^(-1) (tan (-6) = (-6 + 2*(pie)) and
tan^(-1) (tan(10)) = 10 - 3*(pie)
As range of tan^(-1) is ( (-pie)/2, (pie)/2 ), we will not write -6 and 10 as the answers. We will first find the value in this same interval whose tangent is equal to tangent of -6 and 10 and then we will directly say that value as our answer.
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