Mathematics · Functions
The range of the real-valued function f(x) = cos−13√(9x2 − 12x + 22) is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1[π6, π2)
- 2[0, π]
- 3[π4, π2)✓
- 4(0, π4]
Correct answer
[π4, π2)
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