CBSE Solutions for MCQ 12 Science Maths Application of Derivatives in English

CBSE Solutions for MCQ 12 Science Maths Application of Derivatives in English to enable students to get Solutions in a narrative video format for the specific question.

Expert Teacher provides CBSE Solutions for MCQ 12 Science Maths Application of Derivatives through Video Solutions in English language. This video solution will be useful for students to understand how to write an answer in exam in order to score more marks. This teacher uses a narrative style for a question from Application of Derivatives not only to explain the proper method of answering question, but deriving right answer too.

Please find the question below and view the Solution in a narrative video format.

Question:

The rate of change of the area of a circle with respect to its radius r at r=6cm is:

Solution Video in English:

You can select video Solutions from other languages also. Please check Solutions in ( Hindi )

Similar Questions from CBSE, 12th Science, Maths, Application of Derivatives

Question 1 : The line Question is a tangent to the curve Question at the point. (View Answer Video)

Question 2 : The rate of change of the area of a circle with respect to its radius r at r = 6 cm is : (View Answer Video)

Question 3 : A cylindrical tank of radius 10 m is being filled with wheat at the rate of the 314 cubic meters per hour. Then the depth of the wheat is increasing at the rate of ___________. (View Answer Video)

Question 4 : The point on the curve Questionwhich is nearest to the point (0, 5) is :
  (View Answer Video)

Question 5 : The normal to the curve Questionpassing (1, 2) is : (View Answer Video)

Questions from Other Chapters of CBSE, 12th Science, Maths

Linear Programming

Question 1 : The objective function is maximum or minimum, which lies on the boundary of the feasible region. (View Answer Video)

Relations and Functions

Question 1 : Let A = {1, 2, 3}. Then, number of equivalence relations containing (1, 2) are, (View Answer Video)

Question 2 : Let R be the relation on the set N given by R ={(a, b): a = b - 2, b > 6}. Choose the correct answer. (View Answer Video)

Question 3 : If Question is defined by Question, write f(f(x)). (View Answer Video)

Question 4 : The identity element for the binary operation * defined by a * b = Question  , where a, b are the elements of a set of non-zero rational numbers, is, (View Answer Video)

Question 5 :  Let * be any binary operation on the set R defined by a * b = a + b – ab, then the binary operation * is, (View Answer Video)

Probability

Question 1 : A class has 15 students whose ages are 14, 17, 15, 14, 21, 17, 19, 20, 16, 18, 20, 17, 16, 19 and 20 years. One student is selected in such a manner that each has the same chance of being chosen and the age X of the selected student is recorded. What is the probability of the random variable X? Find the mean.   (View Answer Video)

Question 2 : A bag contains 4 red and 4 black balls, another bag contains 2 red and 6 black balls. One of the two bags is selected at random and two balls are drawn at random (without replacement) from the bag which are both found to be red. Find the probability that the balls are drawn from the first bag.    (View Answer Video)

Question 3 : A die is thrown 6 times. If 'getting an odd number' is a 'success', what is the probability of obtaining:
atmost 5 successes? (View Answer Video)

Question 4 : A girl throws a die. If she gets a 5 or 6, she tosses a coin three times and notes the number of heads. If she gets 1, 2, 3 or 4, she tosses a coin two times and notes the number of heads obtained. If she obtained exactly two heads, what is the probability that she threw 1, 2, 3, or 4 with the die?      (View Answer Video)

Question 5 : Three cards are drawn without replacement from a pack of 52 cards. Find the probability that the cards drawn are king, queen and jack respectively.
  (View Answer Video)