1.

The roots of the equation 8x^(2)+22x+5=0 are thetaandphi. Then

Answer»

(a) `sin^(-1)thetaandsin^(-1)phi`, both the REAL
(b) `SEC^(-1)thetaandsec^(-1)phi`, both the real
(c) `tan^(-1)thetaandtan^(-1)phi`, both the real
(d) NONE of these

Answer :C


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