MCQ Bank
If $f$ has a local maximum or minimum at c, and if $f'(c)$ exists, then_________.
- A) $f'(c) < 0$
- B) $f'(c) = 0$
- C) None of these
- D) $f'(c) > 0$
For the area under the curve f(x) = x+2 from x = 2 to x = 4 with mid points approximations for n = 1, what will be the value of xk* ?
- A) 2.5
- B) 2
- C) 3.5
- D) 3
If $f'$ changes from negative to positive at c, then $f$ has a _______________ at c.
- A) local minimum
- B) local maximum
- C) constant
- D) None of these
Subdivide the interval [0, 1] into 2 equal parts, and then the width of each sub-interval will have length ………
- A) 1/2
- B) 1
- C) 0
- D) -1/2
Critical point of function f(x) =4x^2-4x+1 on closed interval [0,1] is x = ………
- A) 2
- B) 1/2
- C) 0
- D) 1,2
f(x)=x^3-3x, is increasing on the interval (0 ,infinity)
- A) True
- B) False
- C)
- D)
12+22+32+…+192 equals _____.
- A) 19(20)(31)/6
- B) 19(20)(37)/6
- C) 19(20)(21)/6
- D) 19(20)(39)/6
1+2+3+…+100 equals _____.
- A) 5050
- B) 5500
- C) 5055
- D) 5005
The indefinite integral of 5sinx is ……….
- A) -5cosx+c
- B) cosx/5+c
- C) -cosx/5+c
- D) 5cosx +c
$${\text{The integral }}\int {{{\left( {{x^2} + 1} \right)}^{\frac{5}{2}}}.\,x\,dx\,} {\text{will be equal to ?}}$$
- A) $$\frac{{2{{\left( {{x^2} + 1} \right)}^{\frac{7}{2}}}}}{7} + c$$
- B) $${\text{None of these}}$$
- C) $$\frac{{{{\left( {{x^2} + 1} \right)}^{\frac{7}{2}}}}}{7} + c$$
- D) $${\left( {{x^2} + 1} \right)^{\frac{7}{2}}} + c$$
If f (x) = |x| -2 is defined on the interval
[-2, 2], then which of the following is true about it.
- A) There is a point in the interval (-2, 2) where f(x) has a horizontal tangent
- B) There is no such point in the interval (-2, 2) where f(x) has a horizontal tangent.
- C) It is discontinuous on the interval [-2, 2].
- D) None of these.
Subdivide the interval [a, b] into 4 equal subintervals then the width of each subinterval is ------
- A) (b-2a)/4
- B) (b-a)/4
- C) (b-a)/2
- D) (2b-a)/4
What is the estimated area under f(x) = x from x = 0 to x = 3 with left end points for n = 3?
- A) 5
- B) 6
- C) 4
- D) 3
$${\text{The integral }}\int {\frac{{6x}}{{{{(3{x^2} + 1)}^2}}}\,dx\,} {\text{will be equal to ?}}$$
- A) $$- \frac{1}{{{{(3{x^2} + 1)}^3}}} + c$$
- B) $$- \frac{1}{{6x + 1}} + c$$
- C) $$\frac{1}{{3{x^2} + 1}} + c$$
- D) $$- \frac{1}{{3{x^2} + 1}} + c$$
The polynomial function f(x)=6x^2-30x+36 has the critical point over the real line is ………
- A) 2/5
- B) 5/2
- C) 2
- D) 5
Let f(x)=x^3 and a=-3 ,b=3 and n = no. of partition of [-3,3]= 4
Let the widths of first, second, third and fourth intervals are 2, 1, 1, 2 respectively. Then “Mesh size” of this partition of [-3,3] is-------
- A) -1
- B) 2
- C) 1
- D) 0
If x =(1+2+3+...+10)+{(1^3)+(2^3)+(3^3)+...+ (10^3)}, then x = _______.
- A) 55.
- B) 110.
- C) 3080.
- D) 3025.
If f(x) = x^4, then which of the following is Not true about it.
- A) Its anti – derivative is x^5/5.
- B) Its anti – derivative is x^5 + 5.
- C) Its anti – derivative is x^5/5 + 2.
- D) Its anti – derivative is x^5/5 + 10.
If x = (4^2) + (5^2) + (6^ 2) + . . . + (30^2), then x = ________.
- A) 465.
- B) 9455.
- C) 9441.
- D) 400.
What is the estimated area under f(x) = 12 / x from x = 1 to x = 3 with mid points for n = 2?
- A) 12.8
- B) 18.0
- C) 13.1
- D) 10.5