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Say you were given a graph like cosecx and they tell you to draw 1/f(x), will there be open circles the intercepts or not? eg. They give you some parabola looking thing like cosecx called f(x) with asymptotes, will there be open circles for intercepts for 1/f(x) or none like sinx?

Whats the domain of inverse sinx . inverse cos x/2

A long jumper left the ground at an angle of 15 degrees and jumped a distance of 7.0m. Considering this result, calculate the velocity of the long jumper leaving the ground. ??????

The point (1.6) lies on the curve y=f(x). If f''(x) = 12(x-1)^2, determine whether (1,6) is a point of inflexion or not. Subbing in 1 gives 0 for the 2nd derivative but the answer says it isn't a pt of inflexion ?_?...

Torque is like an |cosx| graph while Force is a constant (straight line)? Teacher says that force is the same as the torque graph but shouldn't it be constant as the wire will always be perpendicular to the magnetic field no matter how it turns?