Share & grow the world's knowledge!
We want to connect the people who have knowledge to the people who need it, to bring together people with different perspectives so they can understand each other better, and to empower everyone to share their knowledge.
If a set A contains 3 elements, then its power set contains
Choice (b) is correct. The set of all subsets of a set A is called power set of A and is denoted by P(A). If a set A has 3 elements, then number of its subsets is 2³. Hence, the power set of the set A has 8 elements. This question related to Chapter 1 maths Class 11th NCERT. From the Chapter 1. SetRead more
Choice (b) is correct. The set of all subsets of a set A is called power set of A and is denoted by P(A). If a set A has 3 elements, then number of its subsets is 2³. Hence, the power set of the set A has 8 elements.
This question related to Chapter 1 maths Class 11th NCERT. From the Chapter 1. Sets. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-1
The equations of x-axis in space are
The x-axis in three-dimensional space consists of all points where the y and z coordinates are zero. Therefore, the equations of the x-axis are: y = 0 and z = 0 In parametric form, the x-axis can be represented as: x = t, y = 0, and z = 0, where t is a parameter. So, the correct answer is: α Click hRead more
The x-axis in three-dimensional space consists of all points where the y and z coordinates are zero. Therefore, the equations of the x-axis are:
y = 0 and z = 0
In parametric form, the x-axis can be represented as:
x = t, y = 0, and z = 0, where t is a parameter.
So, the correct answer is: α
Click here for more:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/maths/#chapter-11
The reflection of the point (α, β, γ) in the xy-plane is
The reflection of a point (α, β, γ) in the xy-plane involves changing the sign of the z-coordinate while keeping the x and y coordinates unchanged. Therefore, the reflection of the point (α, β, γ) in the xy-plane is: (α, β, -γ) Thus, the correct answer is: (α, β, -γ) Click here for more: https://wwwRead more
The reflection of a point (α, β, γ) in the xy-plane involves changing the sign of the z-coordinate while keeping the x and y coordinates unchanged.
Therefore, the reflection of the point (α, β, γ) in the xy-plane is: (α, β, -γ)
Thus, the correct answer is: (α, β, -γ)
Click here for more:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/maths/#chapter-11
If n(A) = 17, n(B) = 8 for two disjoint sets A and B, then n(A ∪ B) =
Choice (c) is correct. As A and B are disjoints sets. n(A ∪ B) = n (A) +n (B) = 17 + 8 = 25 This question related to Chapter 1 maths Class 11th NCERT. From the Chapter 1. Sets. Give answer according to your understanding. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/clasRead more
Choice (c) is correct. As A and B are disjoints sets. n(A ∪ B) = n (A) +n (B) = 17 + 8 = 25
This question related to Chapter 1 maths Class 11th NCERT. From the Chapter 1. Sets. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-1
If the direction cosines of a line are k, k, k then
The direction cosines of a line are given as k, k, and k. The sum of the squares of the direction cosines must equal 1: k² + k² + k² = 1 3k² = 1 k² = 1/3 k = ±1/√3 Thus, the correct answer is: k = 1/√3 or -1/√3 Click here for more: https://www.tiwariacademy.com/ncert-solutions/class-12/maths/#chapteRead more
The direction cosines of a line are given as k, k, and k. The sum of the squares of the direction cosines must equal 1:
k² + k² + k² = 1
3k² = 1
k² = 1/3
k = ±1/√3
Thus, the correct answer is: k = 1/√3 or -1/√3
Click here for more:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/maths/#chapter-11