12 Science CBSE Solutions for MCQ Maths Vector Algebra in English

Similar Questions from CBSE, 12th Science, Maths, Vector Algebra

Question 1 : Find a vector in the direction of vector which has magnitude 8 unit. (View Answer Video)

Question 2 : Find  if the vectors  and  are coplanar.   (View Answer Video)

Question 3 : If the vertices A, B, C of a triangle ABC have position vectors (1, 2, 3), (-1, 0, 0), (0, 1, 2) respectively then find <ABC (<ABC is the angle between the vectors BA and BC). (View Answer Video)

Question 4 : Find the area of the triangle with vertices A(1, 1, 2), B(2, 3, 5) and C(1, 5, 5). (View Answer Video)

Question 5 :  Find a vector of magnitude making an angle of  with x-axis,  with y-axis and an acute angle with z-axis.  (View Answer Video)

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

Probability

Question 1 : In a group of 30 scientists workings on an experiment, 20 never commit error in their work and are reporting results elaborately. Two scientists are selected at random from the group. Find the probability distribution of the number of selected scientists who never commit error in work and reporting. Also find the mean of the distribution. What values are described in this question?  (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 : A bag A contains 4 black and 6 red balls and bag B 7 black and 3 red balls. A die is thrown. If 1 or 2 appears on it, then bag A is chosen, otherwise bag B. It two balls are drawn at random (without replacement) from the selected bag, find the probability of one of them being red and another black.        (View Answer Video)

Question 4 :  Four cards are drawn successively with replacement from a well shuffled deck of 52 cards. What is the probability that:
 All the four cards are spades?
  (View Answer Video)

Question 5 : A bag I contains 5 red and 4 white balls and a bag II contains 3 red and 3 white balls. Two balls are transferred from the bag I to the bag II and then one ball is drawn from bag II. If the ball drawn from the bag II is red, then find the probability that one red ball and one white ball are transferred from the bag I to the bag II.   (View Answer Video)

Inverse Trigonometric Functions

Question 1 :   is equal to :
  (View Answer Video)

Question 2 : Write the value of   (View Answer Video)

Question 3 : Write the principal value of   (View Answer Video)

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

Question 5 : Evaluate:
(View Answer Video)

Integrals

Question 1 : (View Answer Video)

Question 2 : Find :  (View Answer Video)

Question 3 : Show that :  (View Answer Video)

Question 4 : Evaluate :  (View Answer Video)

Question 5 : Find: . (View Answer Video)