If the rate of increase of `(x^(2))/(2)-2x+5` is twice the rate of decrease of it then x is

If the rate of decrease of (x^(3))/(3)-9x+5 is 7 times the rate of decrease of x then : x=

For what values of x is the rate of increase of x^(3)-5x^(2)+5x+8 is twice the rate of increase of x?

If the rate of change in y=3x^(3)+(9)/(2)x^(+2)-8x is twice the rate of change in x, then: x=

If the rate of change in y=(x^(3))/(3)-x^(2)-30x is 5 times the rate of change in x, then :x =

Find an angle whose rate of increase twice is twice the rate of decrease of its cosine.

Find an angle theta (i) Which increases twice as fast as its cosine.(ii) Whose rate of increase twice is twice the rate of decrease of its consine.

If the rate change in y=2x^(3)+3x^(2)-30x+8 is 6 times the rate of change in x , then :x=

For curve y=(x^(2))/(2)-2x+5 the rate of change of y is twice the rate of change of x ,then value of x is

For curve y=(x^(2))/(2)-2x+5, the rate of change of y is twice the rate of change of x , then value of x is