Mathematics · Algebra
If the sides of a cuboid a, b, and c are in Arithmetic Progression (A.P.) and satisfy the equation a2 + b2 + c2 = 14, find the value of (9b2 - ab - ac - bc).
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 114 + (ab + bc + ac)✓
- 212 + (ab + bc + ac)
- 3(ab + bc + ac)
- 411 - (ab + bc + ac)
Correct answer
14 + (ab + bc + ac)
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