In the case of a 2 Ã 2 matrix, the specific formula for the determinant is simply the upper left element times the lower right element, minus the product of the other two elements.
Before you buy any extended warranty... An extended warranty should not be a rush purchase! Before buying any extended warranty, read the contract carefully. Be sure you understand what is and what is not covered, where you can have your car repaired, and whether there are any deductibles or limits on your coverage.emember, you do not need to purchase your extended warranty from the dealership. If your dealer tells you that you cannot obtain financing without buying an extended warranty or that you can only buy an extended warranty when you purchase the car, it's time to find a new dealer.
Most used cars don't come with warranties. Even if the car had warranty, it may not be transferable to new owner. Even if there is warranty, it may not cover the things you need to get repaired. If you are buying a used car from a dealer for the first time, the salesman may give you hard time. Lenders generally will not approve car loans for used cars that are older than 5 years.