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f(x)=cos-1(cosx), then what is its graph and find it's continuity and differentiability at x=pie and -pie. use graph method . plz reply soon.

basit ali , 14 Years ago
Grade 12
anser 1 Answers
Arun Kumar

Last Activity: 11 Years ago

see this is continuous because cos(x) is continuous so at x=pi or -pi it has to be -1
=> cos-1(x) is same all limits

it will be continuous

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