Time Left - 20:00 mins

WBJEE 2019 Math Revision Quiz 1

Attempt now to get your rank among 226 students!

Question 1

Let Z and W be complex numbers such that |Z| = |W|, and arg Z denotes the principal argument of Z.

Statement 1: If arg Z + arg W = π, then

Statement 2: |Z| = |W|, implies arg Z – arg

Question 2

If z₁, z₂ and z₃, z₄ are two pairs of conjugate complex numbers, then

equals

Question 3

If Δ (x) = $Description: Description: Vitjee-2014-Maths_files\image014.png$
Then $Description: Description: Vitjee-2014-Maths_files\image015.png$ is equal to

Question 4

If A is 3x3 matrix. Given that det(A)=6. Find the det(adj(A)).

Question 5

The equation of the locus of the point of intersection of the straight lines $Description: E:\WBJEE\2011\2011_Mathematics_files\image215.png$ is

Question 6

As system of line is given as y = m_ix + c_i, where m_i can take any value out of 0, 1, –1 and when m_i is positive then c_i can be 1 or –1 when m_i equal 0, c_i can be 0 or 1 and when m_i equals –1, c_i can take 0 or 2. Then the area enclosed by all these straight line is

Question 7

If the angle A and B of the triangle ABC satisfy the equation

then they differ by

Question 8

The equation

has

Question 9

Consider a triangular plot ABC with sides AB = 7 m, BC = 5 m and CA = 6 m. A vertical lamp-post at the mid - point D of AC subtends an angle 30 ° at B. The height (in m) of the lamp-post is :

Question 10

Two men on either side of a tower 75 m high observe the angle of elevation of the top of the tower to be 30^o and 60^o What is the distance between the two men?

226 attempts
0 upvotes
6 comments

Tags :

Jul 28JEE & BITSAT