Math, asked by shampabarik2, 1 month ago

যদি (a+b+C) = 10 এবং a2 +b2 +C2 = 38 হয় তবে (ab+ bC + ca )এর মান কত ?​

Answers

Answered by rajnishverma780021
0

Answer:

(a+b*c)^2=100

a^2+b^2+c^2+2ab+2bc+2ac=100

2(ab+bc+ac)=100-38=62

ab+bc+ac=62/2=31

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