Determinant Maths 12 Science CBSE Solutions for MCQ in English

Similar Questions from CBSE, 12th Science, Maths, Determinant

Question 1 : Evaluate the determinant: . (View Answer Video)

Question 2 : Find the inverse of the matrix . (View Answer Video)

Question 3 : Transpose of a column matrix is, (View Answer Video)

Question 4 : Let A be a non-singular square matrix of order 3 * 3. Then | adj A | is equal to: (View Answer Video)

Question 5 : Let , where . THhen (View Answer Video)

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

Vector Algebra

Question 1 :  Write a unit vector in the direction of the sum of vectors and   (View Answer Video)

Question 2 : 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 3 :  Find the position vector of c which divides the line segment joining A & B whose position vectors are and internally in the ratio
2 : 3.  (View Answer Video)

Question 4 :  Find the scalar quantities from the following:
(i) 10 kg          (ii) 2 m north-west          (iii) 
(iv) 40 W         (v)                    (vi)   (View Answer Video)

Question 5 : Find the scalar quantities from the following:
(i) Time period          (ii) Distance          (iii) Force
(iv) Velocity               (v) Work done          (View Answer Video)

Probability

Question 1 : 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 2 : 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)

Question 3 : A bag contain 2 red, 6 black and 8 green balls. A ball is drawn at random from the bag. Find the probability of black balls:
  (View Answer Video)

Question 4 : How many times must a man toss a fair coin, so that the probability of having at least one head is more than 80%.  (View Answer Video)

Question 5 :  If E and F are independent events, then show that  and are also independent.  (View Answer Video)

Three Dimensional Geometry

Question 1 : Find the distance of the point (-1, -5, -10) from the point of intersection of the line    and the plane (View Answer Video)

Question 2 : Find the distance of the point (2, 12, 5) from the point of intersection of the lines   and the plane (View Answer Video)

Question 3 : Find the distance of the point (-1, -5, -10) from the point of intersection of the line  and plane (View Answer Video)

Question 4 : Find the co-ordinates of the point, where the line  intersects the plane x-y+z-5=0. Also find the angle between the line and the plane. (View Answer Video)

Question 5 : Find the distance between the point (-1, -5, -10) and the point of intersection of line and plane
x - y + z = 5. (View Answer Video)