Let x0 = 0. Define xn+1 = cos xn for every nâ‰¥0. Then

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Let x0 = 0. Define xn+1 = cos xn for every nâ‰¥0. Then

Options:

A . {xn} is increasing and convergent

B . {xn} is decreasing and convergent

C . {xn} is convergent and x2n < limm-->âˆž xm < x2n+1 for every n âˆˆ â„•

D . {xn} is not convergent

Answer: Option C

-NA-

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