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

Expert Teacher provides MCQ Application of Derivatives CBSE Maths 12 Science Answers 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:**

** The normal at the point (1,1) on the curve is **

** Answer Video in** **English****:**

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

**Question 1** : The slope of the normal to the curve at x = 0 is :

(View Answer Video)

**Question 2** : Find the approximate change in volume V of a cube of side x meters caused by increasing the side by 1%. (View Answer Video)

**Question 3** : The maximum value of is (View Answer Video)

**Question 4** : The normal at the point (1, 1) on the curve is: (View Answer Video)

**Question 5** : A stone is dropped into a quiet lake and waves move in circles at a speed of 4 cm per second. At the instant when the radius of the circular waves is 10 cm, how fast is the enclosed area increasing? (View Answer Video)

**Question 1** : Find a vector in the direction of vector which has magnitude 21 units. (View Answer Video)

**Question 2** : Find the direction cosines of the vector joining the points A(1, 2, -3) and B(-1, -2, 1), directed from A to B. (View Answer Video)

**Question 3** : If and denote the position vectors of points A and B respectively and C is a point on AB such that AC = 2 CB, then write the position vector of C. (View Answer Video)

**Question 4** : Write the position vector of the point which divides the join of points with position vectors and in the ratio 2:1. (View Answer Video)

**Question 5** : Find a unit vector parallel to the sum of vectors and (View Answer Video)

**Question 1** : One card is drawn from a pack of 52 cards. Find the probability of getting a red card:

(View Answer Video)

**Question 2** : A coin is biased so that the heads is 2 times as likely to occur as tail. If the coin is tossed twice, find the probability distribution of number of tails. Hence find the mean of the distribution. (View Answer Video)

**Question 3** : A bag X contains 4 white balls and 2 black balls, while another bag Y contains 3 white balls and 3 black balls. Two balls are drawn (without replacement) at random from one of the bags and were found to be one white and one black. Find the probability that the balls were drawn from bag Y. (View Answer Video)

**Question 4** : P speaks truth in 70% of the cases and Q in 80% of the cases. In what percent of cases are they likely to agree in stating the same fact? (View Answer Video)

**Question 5** : A pair of dice is thrown 4 times. If getting a doublet is considered a success, find the probability distribution of the number of successes and hence find its mean. (View Answer Video)

**Question 1** : Write the vector equation of the plane passing through the point (a, b, c) and parallel to the plane (View Answer Video)

**Question 2** : If lines and intersect, then find the value of k and hence find the equation of plane containing these lines. (View Answer Video)

**Question 3** : Find the vector equation of the line passing through the point (1, 2, 3) and parallel to the planes and

(View Answer Video)

**Question 4** : Find the direction cosines of the line (View Answer Video)

**Question 5** : Write the sum of intercepts cut off by the plane on the three axes. (View Answer Video)