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02. IPMAT 2019 Question Paper - IPM Indore Quants
If \(a, b, c\) are real numbers \(a^2 + b^2 + c^2 = 1\), then the set of values \(ab + bc + ca\) can take is:
A. \([-1, 2]\)
B. \(\left[-\frac{1}{2}, 2\right]\)
C. \([-1, 1]\)
D. \(\left[-\frac{1}{2}, 1\right]\)
Started 2 months ago by Mayur Godhani in
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