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A man tries to pull out a nail on the wall with a string attached to the head of the nail and pull at an angle of 30 degree to the wall if the tension in the string is 15N. Calculate the force effective pulling out the nail.

f(x) is a quadratic function whose graph passes through (2,9) and (0,1).If the gradient of the graph at x=2 is 6, find f(x)

Differentiate between period and frequency of an oscillation

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f(x) is a quadratic function whose graph passes through (2,9) and (0,1).If the gradient of the graph at x=2 is 6, find f(x)

A G.P is such that the third term is 9times the first term, while the 2nd term is 1/24 of the 5th term. find its 4th term.