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

જો a + b + c = 0 અને a²+ b² + c² = 40, તો ab + bc + ca નું મૂલ્ય કેટલું છે?

1

-30

2

-20

3

-25

4

-40

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