Mathematics · Continuity and Differentiability
The function f(x) = |cos x| is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1differentiable at every point of x, but not continuous at x = (2n + 1)π/2, n ∈ Z
- 2neither continuous nor differentiable at x = (2n + 1)π/2, n ∈ Z
- 3continuous at every point of x, but not differentiable at x = (2n + 1)π/2, n ∈ Z✓
- 4continuous and differentiable at every point of x
Correct answer
continuous at every point of x, but not differentiable at x = (2n + 1)π/2, n ∈ Z
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