A rod of length l and mass m has a nonuniform mass distribution. The linear mass density is =cx2 , where x is measured from the center of the rod and c is a constant.

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?

Which statement is true about the extreme value of the given quadratic equation? a. the equation has a maximum value with a y-coordinate of -21. b. the equation has a maximum value with a y-coordinate of -27. c. the equation has a minimum value with a y-coordinate of -21. d. the equation has a minimum value with a y-coordinate of -27.

Prove the following(cot0+cosec0)[tex](cot0 + cosec0) { }^{2} = \frac{1 + cos0}{1 - cos0} [/tex]