1.

Let A and B denote the statements A:cosalpha+cosbeta+cosgamma=0""B:sinalpha+sinbeta+singamma=0 If cos(beta-gamma)+cos(gamma-alpha)+cos(alpha+beta)=-(3)/(2), then :

Answer»

A is TRUE and B is FALSE
A is false and B is true
Both A and B are true
Both A and B are false.

ANSWER :C


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