SSC SSC CPO Mock Test Series 2025 (Tier I & II) (DP SI & CAPF) Quantitative Aptitude Algebra Identities

जर (x + y + z) = 0 आणि x2 + y2 + z2 = 36, तर xy + yz + zx चे मूल्य काय आहे?

1
-6
2
18
3
-28
4
-18
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