exam Maths Puzzle Numerical Ability

The combined resistance of two resistors in a parallel circuit is given by the formula

RT=1/(1/R1+1/R2)



Simplify the formula.

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exam Other Question

I am having trouble with the following things in geometry: the sine, cosine, and tangent ratios. If you could give me a few notes or pointers on this i would deeply appreciate it. In preparing a reconciliation of a bank statement and a checkbook balance, an outstanding deposit is:
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