Mathematical problems and Solutions

Find the value of x

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Evaluate ✓x²=x-2

SOLVE for "n"
nⁿ=2²ⁿ
Very Simple but Tricky.

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The speed of an aircraft varies directly with the speed of the propellers.
The angle subtended by the arc of the two propellers at the circumference is75°. If the triangular area of the two propellers is 49m². Calculate;
a). how long will the aircraft cover at 1000 revolution of a propeller.
b). The time , for 1000 revolution at an average speed of 1100km/h.