Una matriz cuadrada A se denomina idempotente si A2=A, y una matriz cuadrada C se denomina involutiva si C2=I, donde I es la matriz identidad. Demuestre que si A es idempotente, entonces C=2A−I es involutiva.

its 69.420

step-by-step explanation:

first anwser choice.

step-by-step explanation:

the greater/less or equal to symbol (> or < with the line at the bottom) is a closed/filled in circle.

-5c + 2 _< _27

subtract from both sides by 2

-5c _< _ 27

divide both sides by -5

c _< _ 5.4

flip the inequality sign

c _> _5.4

the only possible answer that would match the simplified inequality is the first answer choice

you would need to know all the numbers that are on there

step-by-step explanation:

answer: domain and range mean all possible values of x and y that could be substituted to the inequality. a solution means all possible values that make the inequality statement true. so while the range is still all real numbers, the solution is the shaded area, for which y will always be greater than the line of the function.