1.

ΔABC with sides a,b,c opposite to the angles A,B,C satisfies the equation log2(2cosC2cosA−B2)−log2(sin(A+B))=1, then the value of (a2+b2−4c2+2ab) is

Answer» ΔABC with sides a,b,c opposite to the angles A,B,C satisfies the equation
log2(2cosC2cosAB2)log2(sin(A+B))=1, then the value of (a2+b24c2+2ab) is


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