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Set 2
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Set 1
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Set 2
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➤ Averages ➤ 2
Question 1
Q1.
If the mean of a, b, c is M and ab + bc + ca = 0, then the mean of a
2
, b
2
, c
2
is :
M
2
3M
2
6M
2
9M
2
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