# 9- How to Use a matrix for the quadratic function?

How to Use a matrix for the quadratic function? Three solved problems are used to find the quadratic functions by ...

# 8-Practice problem for reduced echelon form.

Practice problem for reduced echelon form. How to determine whether the given matrix is in R echelon form or not? ...

# 7b- Practice problems for Gauss Jordan elimination.

Practice problems for Gauss Jordan elimination are introduced. Step by step guide for solving these problems.

# 7a- Practice problems for back substitution.

Practice problems for back substitution for matrices. Step by step illustration of the process of back substitution.

# 5-How to find the area and Cg for a circular segment?

How do you determine the area and Cg for a circular segment? We will deduct the area of two triangles ...

# 4-How to find the area and Cg for a circular sector?

How do you determine the area and Cg for a circular sector? Use the integration of small area dA to ...

# 3-How to find the area and Cg for a semi-circle?

How do you determine the area and Cg for a semi-circle? Use the integration of small area dA to get ...

# 2- How to find the area and Cg for a circular shaft?

How to determine the area and Cg for a circular shaft? Use the integration of small area dA to get ...

# 22- Easy illustration of Iy for the Trapezium.

Moment of inertia Iy for the Trapezium, How to get the Iy value for the trapezium? and how to get ...

# 7- Easy introduction to row echelon form.

Introduction to row echelon form and reduced row echelon form and their components. what is gauss- Jordan's elimination?

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