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(\(\frac{3√6}{√5} + \frac{√54}{3√5}\))\(^{-1}\)

Further Mathematics
WAEC 2022

(\(\frac{3√6}{√5} + \frac{√54}{3√5}\))\(^{-1}\)

  • A. \(\frac{5√3}{6}\)
  • B. \(\frac{3√15}{6}\)
  • C. \(\frac{5√6}{12}\)
  • D. \(\frac{5√3}{12}\)
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Correct Answer: Option C
Explanation

(\(\frac{3√6}{√5} + \frac{√54}{3√5}\))\(^{-1}\)

= \(\frac{√5(3√5)}{3√6 + 3√6}\)

= \(\frac{3*5}{6√6} = \frac{5}{2√6}\)

= \(\frac{5*2√6}{2√6+2√6} = \frac{10√6}{4*6}\)

= \(\frac{5√6}{12}\)


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WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709