Decide Whether or Not the Matrices Are Inverses of Each

question 301

Multiple Choice

Decide whether or not the matrices are inverses of each other.
- $$\left[ \begin{array} { r r } 6 & - 5 \\- 3 & 5\end{array} \right] \text { and } \left[ \begin{array} { c c } \frac { 1 } { 3 } & \frac { 1 } { 3 } \\\frac { 1 } { 5 } & \frac { 2 } { 5 }\end{array} \right]$$

• A) Yes
• B) No

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Definitions:

Elasticity

A measure of how much the demand or supply of a product changes in response to a change in price.

Stock Put Option

A financial contract giving the buyer the right, but not the obligation, to sell a stock at a specified price within a certain time frame.

Hedge Ratio

A ratio used to measure the amount of exposure reduced in an investment position through the use of a hedging strategy, often involving derivatives such as options or futures contracts.

Put

An options contract giving the owner the right, but not the obligation, to sell a specified amount of an underlying security at a predetermined price within a specified time frame.