92 results authored by Marie Nicholson - search across all users.

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• Question

Putting a pair of linear equations into matrix notation and then solving by finding the inverse of the coefficient matrix.

• Question

Linear combinations of $2 \times 2$ matrices. Three examples.

• Question

Multiplication of $2 \times 2$ matrices.

• Question

Find the determinant and inverse of three $2 \times 2$ invertible matrices.

• Question

Choose which of 5 matrices are in a) row echelon form but not reduced b) reduced row echelon form c) neither.

• Question

Match the equivalence with the rule

• Question

Match the equivalence with the rule

• Question

Asks to determine whether or not 6 statements are propositions or not i.e. we can determine a truth value or not.

• Exam (6 questions)

One question on determining whether statements are propositions.

Four questions about truth tables for various logical expressions.

• Question

No description given

• Question

No description given

• Propositions (v2)
Question

Asks to determine whether or not 6 statements are propositions or not i.e. we can determine a truth value or not.

• Question

Solving a system of three linear equations in 3 unknowns using Gauss Elimination in 4 stages. Solutions are all integral.

• Question

Multiplication of $2 \times 2$ matrices.

• Question

Adding and subtracting two 3x3 matrices.

• Question

Addition, subtraction and multiplication of 2 x 2 matrices and multiplication by a scalar.

(Last three parts of original question removed.)

• Exam (5 questions)

Quiz to assess matrix addition, subtraction, multiplication and multiplication by scalar, determinants and inverses, solving a system of simultaneous equations.

• Question

Find the determinant and inverse of three $2 \times 2$ invertible matrices.

• Question

Elementary Exercises in multiplying matrices.

• Question

Add three vectors by determining their scalar components and summing them.

• Question

Linear combinations of $2 \times 2$ matrices. Three examples.

• Question

Find the determinant and inverse of three $2 \times 2$ invertible matrices.

• Question

Multiplication of $2 \times 2$ matrices.

• Question

aij  notation and definition of the order of a matrix.

• Exam (7 questions)

Matrix addition, multiplication. Finding inverse. Determinants. Systems of equations.

rebelmaths

• Question

Linear combinations of $2$ dimensional vectors.

• Question

Linear combinations of $2 \times 2$ matrices. Three examples.

• Question

Demonstrates how to create variables containing LaTeX commands, and how to use them in the question text.

• Question

No description given

• Exam (2 questions)

This is a quiz on truth tables.