Range of cosec−1x=[−π/2,π/2]−{0} (IV).
Domain of sec−1x=R−(−1,1) (I).
Domain of sin−1x=[−1,1] (III).
Range of cot−1x=(0,π) (II).
A motor boat covers 16 km in 2 hours downstream and 14 km in 2 hours upstream. The speed of the motor boat is :
Held on 15 Jun 2023 · Verified 13 Jul 2026.
0.5 km/hr
5 km/hr
8 km/hr
7.5 km/hr
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