A Level Further Maths Core Pure Year 1 Chapter 6: Mini test

A 2x3 matrix has

• 2 rows, 3 colums
• 2 columns, 3 rows
• 2 brothers, 3 sisters
• Why can't I remember this :(

A 2x3 matrix can be multiplied with a ... matrix to give a ... matrix

• 3x2 ... 2x2
• 2x3 ... 3x2
• 3x2 ... 3x3
• 2x2 ... 3x3

Determinant of 2x2=

• ab-dc
• ad-bc
• ac-bd
• ad+bc

What must be true if AM=I

• A=I
• M=I
• A=M
• A=M^-1

Solve simultaneously and get to 5x + 5y = 10 and x + y = 2

• Consistent. Forms a point
• Inconsistent, forms a sheaf
• Consistent, forms a sheaf
• Consistent, same plane