Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 22,945

1. Solve the following systems of equations using Determinanats:-

a) x+y=3; 2x+3y=7

b) 3x+2y=5; x+3y=4

c) x+2y+z=7; 2x-y+2z=4; x+y-2z=-1

d) 3x+y-z=2; 2x-y+2z=6; 2x+y-2z=-2

e)

2. What is the value of the determinant:

?3. Are the two determinants equal?

4. If

equal to?

5. What is the value of the determinant given below?

6. Are the two matrices A and B equal?

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

Pages: **1**