can someone plz complete this and send working- thanksss!! (1 Viewer)

WorkEfforts

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expand heron's formula in terms of a,b, and c simplifying it to involve sums like ab+bc+ca and a2+b2+c2 then apply the inequalities bound to A2 and take the root to bound A
good boy but remember to write s-a in terms of -a+b+c/2 and repeat consequently for s-b and s-c then equate to what u said above
 

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