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Sticky Note
What is the value of lim (x → 0) (1 - cos x) / x²?
  1. 0
  2. 1
  3. ½
  4. ∞
Explanation

lim⁡x→01−cos⁡xx2=lim⁡x→0sin⁡x2x=12lim_{x to 0} frac{1 - cos x}{x^2} = lim_{x to 0} frac{sin x}{2x} = frac{1}{2}

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