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Maths Puzzle
Numerical Ability
1/2x-1/2=1/4x+3/2
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book Other Question
If P=x+1/x-1 and Q=x-1/x+1, find P^2+Q^2-PQ.
The kinetic energy of a particle of mass m is found by taking one-half of the product of the mass (m) and the square of the velocity (v). Write an expression for the kinetic energy