exam Maths Puzzle Numerical Ability

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find the third term in the expansion of (3t+4)^8

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exam Other Question

ABCD is a rectangle in which AB = 16cm, AC = 20cm and AE is the perpendicular from A to BD. Find the lengths of AD and AE. simplify the complex fraction

9^2-16^2y over xy all over 3 over x -4 over x