12 Science CBSE Solutions for MCQ Maths Vector Algebra in English to enable students to get Solutions in a narrative video format for the specific question.

Expert Teacher provides 12 Science CBSE Solutions for MCQ Maths Vector Algebra through Video Solutions 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 Vector Algebra not only to explain the proper method of answering question, but deriving right answer too.

Please find the question below and view the Solution in a narrative video format.

** Question:**

** Compute the magnitude of the following vectors:
**

** Solution Video in** **English****:**

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

**Question 1** : Find if and (View Answer Video)

**Question 2** : Find a vector in the direction of vector which has magnitude 21 units. (View Answer Video)

**Question 3** : 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)

**Question 4** : 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 5** : L and M are two points with position vectors and respectively. Write the position vectors of a point N which divides the line segment LM in the ratio 2:1 externally. (View Answer Video)

**Question 1** : Let defined as f(x) = 5 be a constant function. Then its range is (View Answer Video)

**Question 2** : Let * be the binary operation on N given by a * b = LCM of a and b. Find the identity of * in N. (View Answer Video)

**Question 3** : Let R be the relation on the set {1, 2, 3, 4} given by R = {(1, 2), (2, 2), (1, 1), (4, 4), (1, 3), (3,3), (3,2)}. then R is, (View Answer Video)

**Question 4** : Letbe defined as f(x) = 3x. (View Answer Video)

**Question 5** : Let * be the binary operation on N given by a * b = LCM of a and b. Find 5 * 7. (View Answer Video)

**Question 1** : A pair of coins is tossed once. Find the probability of showing atleast one head. (View Answer Video)

**Question 2** : 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 3** : Evaluate , if 2P(A)=P(B)= and =. (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** : If P(A)=, P(B)= and =, find . (View Answer Video)

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

**Question 2** : What is principal value of (View Answer Video)

**Question 3** : Using principal values, write the value of (View Answer Video)

**Question 4** : If then find the value of x. (View Answer Video)

**Question 5** : is equal to: (View Answer Video)