Question: find each limit a) lim x approaches infinity (4cos(x))/ (x^2 + 1) b) lim x approaches infinity (x - 2sin(x)) / x studying for

find each limit

a) lim "x approaches infinity" (4cos(x))/ (x^2 + 1)

b) lim " x approaches infinity" (x - 2sin(x)) / x

studying for calc exam and doing practice problems please explain if work is not clear since i do not understand. thank you

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