The total revenue in rupees received from the sale of x units of a product is given by R(x) = 13x2 + 26x + 15. Then, the marginal revenue in rupees, when x = 15 is
116
126
136
416
If a tangent of the curve y = 2 + has slope at a point, then the point is
(0, 2)
(2, 5)
(6, 7)
D.
(6, 7)
Curve, y = 2 + has slope 2/5.
Differentiating w.r.t. x,
Thus, the required point is (6, 7).
The value of x in the interval [ 4, 9] at which the function f(x) = satisfies the mean value theorem is
If A = is a matrix satisfying AAT = 9I3, then the values of a and b are respectively.
1, 2
- 1, 2
- 1, - 2
- 2, - 1