Question

If a²+b²+c²=1-2(b+c-1). then what will be the value of a+b+c. one who will answer this question first I'll gave you thank you 30​

Answer 1

Step-by-step explanation:

I write square as x OK baby bro

ax+bx+cx=1-2(b+c-1)

ax+bx+cx=1-2b-2c+2

ax+bx+cx=3-2(b-c)

ax+(b+c)x=3

x(a+b+c)=3

a+b+c=3/x

a+b+c=√3

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