find a and B
. solve fast.,!!
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I hope this helps you
thanks ❤️
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a:b::b:c
=>a/b=b/c
=>b²=ac
Now ....
(a²-b²+c²)/(a-² -b-²+c-²)
=>(a²-b²+c²)/(1/a² -1/b²+1/c²)
=>(a²-b²+c²)/[(b²c²-a²c²+a²b²)/a²b²c²]
=>(a²-b²+c²)/[(ac³-a²c²+a³c)/b^6]
=>(a²-b²+c²)/[ac(c²-ac+a²)/b^6]
=>(a²-b²+c²)/[b²(c²-b²+a²)/b^6]
=>b^6/b²
=>b^4 (proved)
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