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Continuity and Differentiability Class 12 Maths MCQs Pdf

Continuity And Differentiability Class 12 MCQ Question 1.
The derivative of f(tan x) w.r.t. g(sec x) at x = $$\frac{\pi}{4}$$, where f'(1) = 2 and g'(âˆš2) = 4, is
(a) $$\frac{1}{\sqrt{2}}$$
(b) âˆš2
(c) 1
(d) 0
(a) $$\frac{1}{\sqrt{2}}$$

Continuity And Differentiability MCQ Class 12 Question 2.

(c) $$\frac{2}{3}$$

Differentiation MCQ Class 12 Question 3.

(b) 1

MCQ On Continuity And Differentiability Class 12 Question 4.
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(c) $$\frac{5}{16 t^{6}}$$

Class 12 Maths Chapter 5 MCQ Question 5.

(a) n2y

MCQ Questions On Differentiation Class 12 Question 6.

(d) $$-\frac{b}{a^{2}} \sec ^{3} \theta$$

MCQ On Differentiation Class 12 Question 7.

(c) y. (log ab2)2

MCQ Of Continuity And Differentiability Class 12 Question 8.

(d) $$-\frac{1}{e^{2}}$$

MCQ Of Differentiation Class 12 Question 9.

(a) $$\frac{\sec ^{3} \theta}{a \theta}$$

Continuity And Differentiability Class 12 MCQ With Answers Question 10.

(d) 0

MCQ Of Chapter 5 Maths Class 12 Question 11.

(b) $$-\sqrt{\frac{\pi}{6}}$$

Question 12.

(a) $$\frac{\sqrt{(x+y)}-\sqrt{y-x}}{\sqrt{y-x}+\sqrt{x+y}}$$

Question 13.

(b) $$\frac{2 a x+b y-y^{2}}{2 x y-b x-2 y}$$

Question 14.

(d) 1

Question 15.

(c) $$\frac{1}{2 \sqrt{1-x^{2}}}$$

Question 16.

(d) $$\frac{1}{2}$$

Question 17.

(c) $$\frac{2\left(1-x^{2}\right)}{\left(1+x^{2}\right)\left|1-x^{2}\right|}, x \neq\pm 1,0$$

Question 18.

(b) 0

Question 19.

(c) sec x tan x

Question 20.

(d) 3e7

Question 21.
If x2 + y2 = 1, then
(a) yy” – (2y’)2 + 1 = 0
(b) yy” + (y’)2 + 1 = 0
(c) yy” – (y’)2 – 1 = 0
(d) yy” + (2y’)2 + 1 = 0
(b) yy” + (y’)2 + 1 = 0

Question 22.

(c) -9y

Question 23.
The value of c in Rolle’s theorem for the function, f(x) = sin 2x in [0, $$\frac{\pi}{2}$$] is
(a) $$\frac{\pi}{2}$$
(b) $$\frac{\pi}{4}$$
(c) $$\frac{\pi}{3}$$
(d) $$\frac{\pi}{6}$$
(b) $$\frac{\pi}{4}$$

Question 24.
The value of c in Rolle’s Theorem for the function f(x) = ex sin x, x âˆˆ [0, Ï€] is
(a) $$\frac{\pi}{6}$$
(b) $$\frac{\pi}{4}$$
(c) $$\frac{\pi}{2}$$
(d) $$\frac{3 \pi}{4}$$
(d) $$\frac{3 \pi}{4}$$

Question 25.
A value of c for which the Mean value theorem holds for the function f(x) = logex on the interval [1, 3] is
(a) 2log3e
(b) $$\frac{1}{2} \log _{e} 3$$
(c) log3e
(d) loge3
(a) 2log3e

Question 26.
The value of c in mean value theorem for the function f(x) = (x – 3)(x – 6)(x – 9) in [3, 5] is
(a) 6 Â± âˆš(13/3)
(b) 6 + âˆš(13/3)
(c) 6 – âˆš(13/3)
(d) None of these
(c) 6 – âˆš(13/3)

Question 27.
The value of c in Mean value theorem for the function f(x) = x(x – 2), x âˆˆ [1, 2] is
(a) $$\frac{3}{2}$$
(b) $$\frac{2}{3}$$
(c) $$\frac{1}{2}$$
(d) $$\frac{5}{2}$$
(a) $$\frac{3}{2}$$

Question 28.

(b) ln a + ln b

Question 29.

(c) 8

Question 30.
The number of discontinuous functions y(x) on [-2, 2] satisfying x2 + y2 = 4 is
(a) 0
(b) 1
(c) 2
(d) >2
(a) 0

Question 31.

(c) $$-\frac{1}{2}$$

Question 32.

(b) $$\frac{1}{4}$$

Question 33.

(c) $$\frac{-1}{(1+x)^{2}}$$

Question 34.
If y = (1 + x)(1 + x2)(1 + x4)…..(1 + x2n), then the value of $$\frac{d y}{d x}$$ at x = 0 is
(a) 0
(b) -1
(c) 1
(d) None of these
(c) 1

Question 35.

(d) $$\frac{1}{\sqrt{24}}$$

Question 36.
If y = ax2 + b, then $$\frac{d y}{d x}$$ at x = 2 is equal to
(a) 4a
(b) 3a
(c) 2a
(d) None of these
(a) 4a

Question 37.

(b) $$\frac{2 y \sqrt{y^{2}-1}\left(x^{2}+x-1\right)}{\left(x^{2}+1\right)^{2}}$$

Question 38.

(a) $$\frac{1}{2}$$

Question 39.

(c) $$\frac{\log _{10} e}{x}\left(\frac{y}{y-1}\right)$$

Question 40.

(d) None of these

Question 41.

(d) $$$\frac{y}{x}$$$

Question 42.
If Rolle’s theorem holds for the function f(x) = x3 + bx2 + ax + 5 on [1, 3] with c = (2 + $$\frac{1}{\sqrt{3}}$$), find the value of a and b.
(a) a = 11, b = -6
(b) a = 10, b = 6
(c) a = -11, b = 6
(d) a = 11, b = 6
(a) a = 11, b = -6

Question 43.
If y = (tan x)sin x, then $$\frac{d y}{d x}$$ is equal to
(a) sec x + cos x
(b) sec x + log tan x
(c) (tan x)sin x
(d) None of these
(d) None of these

Question 44.

(d) $$\frac{\log x}{(1+\log x)^{2}}$$

Question 45.
The derivative of y = (1 – x)(2 – x) ….. (n – x) at x = 1 is equal to
(a) 0
(b) (-1)(n – 1)!
(c) n! – 1
(d) (-1)n-1(n – 1)!
(b) (-1)(n – 1)!

Question 46.
If xy . yx = 16, then the value of $$\frac{d y}{d x}$$ at (2, 2) is
(a) -1
(b) 0
(c) 1
(d) none of these
(c) $$\frac{y}{1-y}$$