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The equation 3 cos^(-1) x - pi x - (pi)/...

The equation `3 cos^(-1) x - pi x - (pi)/(2) =0`has

A

A. one negative solution

B

B. one positive solution

C

C. no solution

D

D. more than one solution

Text Solution

Verified by Experts

The correct Answer is:
B
`3 cos^(-1) x - pi x - (pi)/(2) = 0 " or " cos^(-1) x = (pi x)/(3) + (pi)/(6)`

From the graph, there is only one solution
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