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If alpha, beta are the roots of the equa...

If `alpha, beta` are the roots of the equations `6x^2+11x+3=0` , then a)Both `cos^(-1) alpha and cos^(-1) beta` are real b)Both `"cosec"^(-1) alpha and "cosec"^(-1) beta` are real c)Both `cot^(-1) alpha and cot^(-1) beta` are real d)None of these

A

Both `cos^(-1) alpha and cos^(-1) beta` are real

B

Both `"cosec"^(-1) alpha and "cosec"^(-1) beta` are real

C

Both `cot^(-1) alpha and cot^(-1) beta` are real

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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