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Maths
A Level

If f(x)=x^2 and g(x)=5x-11, then what is fgg(x) when x=3?

g(3)=5(3)-11=15-11=4gg(3)=g(4)=5(4)-11= 20-11=9fgg(3)=f(9)=92=81fgg(3...

Answered by Simon M. • Maths tutor
3620 Views

Express (x+1)/2x + (2x+3)/(x+1) as one term

(x+1)2 + 2x(2x+3) / 2x(x+1)

Answered by Alex R. • Maths tutor
3436 Views

A uniform ladder of mass 5 kg sits upon a smooth wall and atop a rough floor. The floor and wall are perpendicular. Draw a free body diagram for the ladder (you do not need to calculate any forces).

Diagram should include two orthogonal lines, representing the wall and floor. Connecting them should be a diaganol line (the ladder)
At the midpoint of the line should be a vertical downward...

Answered by Dean G. • Maths tutor
2867 Views

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