Questions
If A,B,C are the angles of a triangle, the system of equations, ,, has
detailed solution
Correct option is B
We haveΔ=sinA111sinB111sinC C2→C2-C3 =sinA 0 1−sinA 1 sinB−1 0 1 1−sinC sinC−1 =sinAsinB−1sinC−1−0+1−sinA1−sinc−sinB+1 =sinAsinBsinC-sinAsinB-sinAsinC+sinA +2+-sinB-sinC-2sinA+sinAsinB+sinAsinC =2+sinAsinBsinC-sinA-sinB-sinC >0i.e., Δ>0⇒The system has unique solution.Similar Questions
The number of matrices whose entries are either and for which the system has exactly two distinct solutions, is
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