Teaching CTET (Paper 1 & Paper 2) Mock Test Series 2025 Quantitative Aptitude Elementary Statistics

यदि a, b, c का माध्य M है तथा ab + bc + ca = 0 है, तो a2, b2, c2 का माध्य है

1
M2
2
3M2
3
6M2
4
9M2
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