If \( a+b+c=19, a b+b c+c a=-13 \), then the value of \( a^{2}+b^{2... VIDEO
If \( a+b+c=19, a b+b c+c a=-13 \), then the value of \( a^{2}+b^{2}+c^{2} \) is equal tohttps://bit.ly/YTAI_PWAP https://www.pw.live
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