a,b,c are real numbers such that a+b+c=14 and c^2=a^2+b^2 and a×b = 28 , then c is
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Step-by-step explanation:
a + b + c = 14
वर्ग करने पर
(a + b + c)² = 196
a²+b²+c²+2ab+2bc+2ac = 196
c²+c² + 2(28) + 2c(a+b) = 196
2c² + 56 + 2c(14-c) = 196
2c² + 56 + 28c - 2c² = 196
28c + 56 = 196
28c = 140
c = 5
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