exam
Maths Puzzle
Numerical Ability
Given a= x(^1/2)- 4x(^-1/2). What is the value of 1/a^-2?
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exam Other Question
5ay+b=80ay-c; solve for y
**assume none of the coeffiecnts or variables are 0*
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Please help me with the problem below. Thank you!
sqrt7(2sqrt3+3sqrt7)
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