Applications of Derivatives  MCQs

MCQs of Applications of Derivatives

Showing 21 to 30 out of 266 Questions
21.
The local minimum value of f(x)=x2+4x+5 is _____
(a) 2
(b) 4
(c) 1
(d) -1
Answer:

Option (c)

22.
The maximum value of f(x)=5cosx+12sinx is _____
(a) 13
(b) 12
(c) 5
(d) 17
Answer:

Option (a)

23.
The minimum value of f(x)=3cosx+4sinx is ______
(a) 7
(b) 5
(c) -5
(d) 4
Answer:

Option (c)

24.
f(x)=xlogx has minimum value _____
(a) 1
(b) 0
(c) e
(d) -1e
Answer:

Option (d)

25.
f(x)=3cosx+sinx, x  0, π2 is maximum for x= _____
(a) π6
(b) π3
(c) π2
(d) 0
Answer:

Option (a)

26.
f(x) = (x-a)2 + (x-b)2 + (x-c)2 has minimum value at x = _____
(a) abc3
(b) a + b + c
(c) a + b + c3
(d) 0
Answer:

Option (c)

27.
f(x) = (x+2)e-x is increasing in _____
(a) (-, -1)
(b) (-1, -)
(c) (2, )
(d) R+
Answer:

Option (a)

28.
The measure of the angle of intersection between y2=x and x2=y other than one at (0, 0) is _____
(a) tan-143
(b) tan-134
(c) π4
(d) π2
Answer:

Option (b)

29.
The point where normal to y=x2-2x+3 is parallel to Y-axis is _____
(a) (0, 3)
(b) (-1, 1)
(c) (1, 2)
(d) (3, 6)
Answer:

Option (c)

30.
The slope of normal to (3t2+1, t3 -1) at t=1 is_____
(a) 12
(b) -2
(c) 2
(d) -12
Answer:

Option (b)

Showing 21 to 30 out of 266 Questions