If x is a function of time, t, then the second derivative of x, with respect to t, is the acceleration in the x direction.
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y = 100 - 4x ( a ) Find the value of y when x = 20.
the value of sin(x) lies between -1 to +1. the approx value of sin(x)/x = 1 when x tends to 0 & sin(x)/x = 0 when x tends to infinity.
18
Sin(x) has a maximum value of +1 and a minimum value of -1.
60