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NCERT Class 12- Mathematics: Chapter β 6 Application of Derivatives Part 22
Question 44:
The slope of tangent to the curve at the point is:
(A)
(B)
(C)
(D)
Answer: (B)
Question 45:
The two curves and intersect at an angle of
(A)
(B)
(C)
(D)
Answer: (C)
Question 46:
The interval on which the function is decreasing is:
(A)
(B)
(C)
(D)
Answer: (B)
Question 47:
Let the be defined by , then
(A) Has a minimum at
(B) Has a maximum, at
(C) Is a decreasing function
(D) Is an increasing function
Answer: (D)
Question 48:
decreases for the values of given by:
(A)
(B)
(C)
(D)
Answer: (A)
Question 49:
The function is strictly
(A) Increasing in
(B) Decreasing in
(C) Decreasing in
(D) Decreasing in
Answer: (B)
Question 50:
Which of the following functions is decreasing on
(A)
(B)
(C)
(D)
Answer: (C)
Question 51:
The function
(A) Always increases
(B) Always decreases
(C) Never increases
(D) Sometimes increases and sometimes decreases.
Answer: (A)
Question 52:
If is real, the minimum value of is
(A)
(B)
(C)
(D)
Answer: (C)
Question 53:
The smallest value of the polynomial in is
(A)
(B)
(C)
(D)
Answer: (B)