exam
Maths Puzzle
Numerical Ability
a cylindrical tin of particular volume is to be made using as little material as possible. find the ratio of the height to the radius(the tin is closed both ends)
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exam Other Question
simplify/factor
1/2(2x^2-x+1)^(1/2) (4x-1)(x^3+1)^1/3 + (2x^2-x+1)^1/2 1/3(x^3+1)^-2/3 (3x^2)
i think: let u = (2x^2-x+1) and w= (x^3+1)
key works for radio wealth, last week the worked as fallows
monday 4 5/8 hrs
tuesday 7 1/6 hrs
wensday 9 3/4 hrs
thursday 8 1/2 hrs
friday 9 1/2 hrs
for how many hours did key worked last week?
show your sulotion