1.

$$\frac{{m - {a^2}}}{{{b^2} + {c^2}}}$$+ $$\frac{{m - {b^2}}}{{{c^2} + {a^2}}}$$+ $$\frac{{m - {c^2}}}{{{a^2} + {b^2}}}$$= 3, then the value of m is?

A. 2 + b2
B. 2 + b2 + c2
C. 2 - b2 - c2
D. 2 + b2 - c2
Answer» C. 2 - b2 - c2


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