WAEC Further Mathematics 2022 Objective — Question 2

Question 2 of 40 from the West African Examinations Council (WAEC) Further Mathematics 2022 Objective paper, with the correct answer and a full explanation.

Simplify [ (3√6+√54) / √5(3√5) ]⁻¹.

A. 5√3/6
B. 3√15/6
C. 5√6/12Correct
D. 5√3/12

Explanation

√54=3√6, so the numerator becomes 3√6+3√6=6√6, and the denominator √5(3√5)=15. Inverting (6√6/15)⁻¹ and rationalizing gives 5√6/12.

Sign up free to unlock

Score tracking
Practice history
Saved questions
Progress dashboard
Personalized sessions
Weak-topic breakdown

…and/or go further with premium services and No Ads.

Create free account

More questions from Further Mathematics 2022 Objective More Further Mathematics past papers