# Tutor profile: Sindhuja G.

## Questions

### Subject: Linear Algebra

Diagonalize the matrix 3 0 0 −3 4 9 0 0 3

Step 1: Find Eigenvalues Find determinant of matrix 3-y 0 0 −3 4-y 9 0 0-y 3-y = (3-y) (4-y) (3-y) y=3 and y=4 Step 2: Determine eigen vectors With y=3, we have two eigen vectors and one with y=4 [ 3] and [1] ; [0] [0] [0] [1] [1] [3] [0] Step 3: Diagonalize 3 1 0 3 0 0 0 0 1 0 3 1 0 3 0 1 0 −3 1 0 0 0 0 4 −3 1 9

### Subject: Basic Math

Wanda baked 168 cookies, packaged them in boxes of 12, and sold each box for $1.20. How many boxes of 12 can be packaged if there are 168 cookies? What was the total amount of money that Wanda made for all of the boxes sold?

We know that Wanda has 168 cookies. She has to group the cookies in batches of 12. So we "Divide" the 168 cookies into groups of 12 cookies. Thus to find out the number of such groups divide 168 by 12 which is 14 (168/12 = 14). 1. How many boxes of 12 can be packaged if there are 168 cookies? When 168 cookies are divided into groups of 12, 14 such groups will be formed. Thus we need 14 boxes for packaging. 2. What was the total amount of money that Wanda made for all of the boxes sold? If each box is sold for $1.20 and there are 14 such boxes, the total amount would be 14 * 1.2 = $16.80

### Subject: GMAT

I need help with creating a strategy to review weekly work or study

1. At the end of a study session, write down three main takeaways for each topic. Before beginning the next session, review the previous takeaways. 2. Use flashcards/bookmarks to note specific takeaways (eg: a formula you had trouble remembering) and review before each practise session.

## Contact tutor

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