Practice Addition and Subtraction - 21.3.1 | 21. Linear Algebra | Mathematics (Civil Engineering -1)
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21.3.1 - Addition and Subtraction

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is A + B if A = [[1, 2], [3, 4]] and B = [[5, 6], [7, 8]]?

💡 Hint: Add corresponding elements of each matrix.

Question 2

Easy

If C = [[3, 3], [3, 3]], what is C - C?

💡 Hint: Subtract elements from themselves.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

Can you add a 2x3 and a 3x2 matrix?

  • True
  • False

💡 Hint: Think about the shape of each matrix.

Question 2

What is the first element of the resulting matrix if A = [[1,2], [3,4]] and B = [[5,6], [7,8]]?

  • 1
  • 5
  • 6
  • 7

💡 Hint: Look at the top left corner of both matrices.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Prove that the sum of a matrix and its negative matrix results in a zero matrix through an example.

💡 Hint: Subtract each element from itself.

Question 2

A will be a 3x3 matrix with all elements equal to 1. Describe the addition of this matrix with a 3x3 matrix having all elements equal to 2.

💡 Hint: Look at the total number of elements when you add them!

Challenge and get performance evaluation