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

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** Question:**

** Find the maximum profit that a company can make if the profit function is. **

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

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

**Question 1** : Ifthen the approximate value of f(3.02) is : (View Answer Video)

**Question 2** : A balloon, which always remains spherical on inflation, is being inflated by pumping in 900 cubic centimetres of gas per second. Find the rate at which the radius of the balloon increases when the radius is 15 cm. (View Answer Video)

**Question 3** : For the curve, y= if x increases at the rate of 2 units/sec, then how fast is the slope of curve changing when x=3? (View Answer Video)

**Question 4** : The maximum value of is (View Answer Video)

**Question 5** : On which of the following intervals in the function strictly decreasing? (View Answer Video)

**Question 1** : If a, b, c are in AP, then determinant . (View Answer Video)

**Question 2** : Transpose of a column matrix is, (View Answer Video)

**Question 3** : Let A be the non- singular square matrix of order , then |adj A| is equal to, (View Answer Video)

**Question 4** : Find the values of x, if . (View Answer Video)

**Question 5** : Evaluate the determinants:. (View Answer Video)

**Question 1** : In a hockey match, both teams A and B scored same number of goals up to the end of the game, so to decide the winner, the referee asked both the captains to throw a die alternately and decided that the team, whose captain gets a six first, will be declared the winner. If the captain of the team A was asked to start, find their respective probabilities of winning the match and state whether the decision of the referee was fair or not. (View Answer Video)

**Question 2** : Find the mean, the variance and the standard deviation of the number of doublets in three throws of a pair of dice. (View Answer Video)

**Question 3** : Five bad oranges are accidently mixed with 20 good ones. If four oranges are drawn one by one successively with replacement, then find the probability distribution of number of bad oranges drawn. Hence, find the mean and variance of the distribution. (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** : There are three coins. First is a biased that comes up tails 60% of the times, second is also a biased coin that comes up heads 75% of the times and third is an unbiased coin. One of the three coins is chosen at random and tossed, it shows heads, what is the probability that it was the first coin? (View Answer Video)

**Question 1** : Find the particular solution of the differential equation :

when x = 1, (View Answer Video)

**Question 2** : Find the solution of the differential equation (View Answer Video)

**Question 3** : Find the particular solution of the differential equation given that y = 1 when x = 0. (View Answer Video)

**Question 4** : Find the general solution of the following differential equation :

(View Answer Video)

**Question 5** : Find the differential equation of the family of lines passing through the origin. (View Answer Video)