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

Expert Teacher provides CBSE Application of Derivatives Maths 12 Science Answers for MCQ through Video Answers 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 Answer in a narrative video format.

** Question:**

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**Question 1** : The radius of an air bubble is increasing at the rate of . At what rate is the volume of the bubble increasing when its radius is 1 cm? (View Answer Video)

**Question 2** : Find the equation of the tangent to the curve at the points, where it cuts the x axis. (View Answer Video)

**Question 3** : If the radius of a sphere is measured as 9 m with an error of 0.03 m, then find the approximate error in calculating its surface area. (View Answer Video)

**Question 4** : 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 5** : The normal to the curve passing (1, 2) is : (View Answer Video)

**Question 1** : A couple has 2 children. Find the probability that both are boys, if it is known that the older child is boy. (View Answer Video)

**Question 2** : Assume that the chances of a patient having a heart attack are 40%. Assume that a meditation and yoga course reduces the risk of heart attack by 30% and the prescription of certain drugs and certain restrictions reduces the risk by 25%. At a time, a patient choses only one of the two options with equal probabilities. After going through one of the two options, the patient is selected at random who is suffering from a heart attack. Find the probability that the patient followed a course of meditation and yoga. Write the value referred here. (View Answer Video)

**Question 3** : An urn contains 4 balls. Two balls are drawn at random from the urn (without replacement) and are found to be white. What is the probability that all the four balls in the urn are white? (View Answer Video)

**Question 4** : If each element of a second-order determinant is either zero or one, what is the probability that the value of the determinant is positive? (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.

(View Answer Video)

**Question 1** : Find the value of Y, if and . (View Answer Video)

**Question 2** : Compute: . (View Answer Video)

**Question 3** : Given, , find the value of x. (View Answer Video)

**Question 4** : If , write the value of"x". (View Answer Video)

**Question 5** : Compute: . (View Answer Video)

**Question 1** : Find the greatest and least values of (View Answer Video)

**Question 2** :

Solve the equation:

**Question 3** : Write the principal value of

(View Answer Video)

**Question 4** : Write the value of (View Answer Video)

**Question 5** : is equal to :

(View Answer Video)