Mathematics · Ratio and Proportion

The mean proportional between (21 + 16√2) and (16 - 7√2) is:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

117√7
2√(109 + 112√2)✓
3√(112 + 109√2)
44√7

Correct answer

√(109 + 112√2)

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The mean proportional between (21 + 16√2) and (16 - 7√2) is:

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