A. 240 / √3

B. 200√3

C. 240√3

D. 120 / √3

Observe the following statements :<br>A : Integrating factor of (dy/dx) + y = x<sup>2</sup> is e<sup>x</sup><br>R :Integrating factor of (dy/dx) + P(x) y = Q(x) is e^{∫p(x)dx}.

Then the true statement among the following is

The circumference of a circle is measured as 56 cm with an error 0,02 cm. The percentage error in its area is<br>

The angle between the curves xy=4 and x^{2}-y^{2}=15 at the point (-4, -1) is

If the rate of change in y=2x^{3}+3x^{2}-30x+7 is 6 times the rate of change in x, then x=

If x is real, the maximum value of 3x^{2}+9x+17/3x^{2}-9x+17 is