1.

Which of the following is the principal value branch of cos−1x? (a) [−π2,π2] (b) (0, π) (c) [0, π] (d) (0, π)−{π2}

Answer»

Which of the following is the principal value branch of cos1x?

(a) [π2,π2] (b) (0, π) (c) [0, π] (d) (0, π){π2}



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