A) \[a+b+c,\frac{a-b-c}{2},\frac{a+b-c}{2}\]
B) \[\frac{a+b}{2},\frac{b+c}{2},\frac{c+a}{2}\]
C) \[\frac{a}{2},\frac{b}{2},\frac{c}{2}\]
D) \[\frac{a-b+c}{2},\frac{a+b-c}{2},\frac{b+c-a}{2}\]
Correct Answer: D
Solution :
(d): Mind of a Mathematician Use \[m+n=a;n+p=b,p+m=c\] At this stage itself, the student will know that he has the answer since he has got 3 equations in 3 variables (m, n, p) which can always be solved.
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