Mathematics · Inverse Trigonometric Functions
The domain of y = cos-1(x2 - 4) is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1[3, 5]
- 2[0, π]
- 3[-√5, -√3] ∩ [√3, √5]
- 4[-√5, -√3] ∪ [√3, √5]✓
Correct answer
[-√5, -√3] ∪ [√3, √5]
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