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प्रश्न
Which of the following is the principal value branch of cos–1x?
विकल्प
`[(-pi)/2, pi/2]`
(0, π)
[0, π]
`(0, pi) - {pi/2}`
उत्तर
[0, π]
Explanation:
Principal value branch of cos–1x is [0, π]
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