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If a+b+c=a and ab+bc+ca=26 find a2+b2+c2​

Answer»

We KNOW the FORMULA:(a+b+c)² = a² + b² + c² + 2(ab+bc+ca)Given:a+b+c = 9 & ab+bc+ca = 26Now putting the values in the above formula,We get,(9)² = a² + b² + c² + 2×2681 = (a² +b² +c²) + 52(a² +b²+c²) = 81-52(a² + b² + c²) = 29 (Answer)HEY bro/sis hope its helpful for u Step-by-step explanation:pls MARK me as the BRAINLIEST



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