CALCULUS - need help!

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Determine the limit of the trigonometric function (if it exists).

1. lim sin x / 5x
(x -> 0)

2. lim tan^2x / x
(x ->0)

3. lim cos x tan x / x
(x -> 0)

  • CALCULUS - need help! -

    I will be happy to critique your thinking on these.

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