exam Maths Puzzle Numerical Ability

-1 + 7y+6t/2y - 6y+6t/5y

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exam Other Question

Simplify:

sec^2t-1/sec^2t
A study by Dr. Aaron R. Folsom concluded that waist to hip ratios are a better predictor of 5 year survival than more traditional height to weight ratios. Dr. Folsom concluded tha