answer please arrgent
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(a+b+c)² = a²+b²+c²+2ab+2bc+2ca
(a+b+c)² = a²+b²+c²+2(a+b+c)
(a+b+c)² = 250 +2(3)
(a+b+c)² = 250+6
(a+b+c)² = 256
a+b+c = √256
a+b+c = 16
arpita415:
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answer please arrgent it is in my question box
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