Find the inverses of the following matrices mod n. write the in the inverse matrix as nonnegative integers less than n. entries 1 3) mod 5 (b) 1 3 mod 29 (c)9 15 17 (0) 4 3 197 62mod 841 40 mod 841 (e) 603 21 in exercises 3-5, find all solutions () modulo n, writing r and y as d) o 21 nonnegative integers less than n r +4y 1 mod 9 5z +8y1 mod 9 5x + 7y1 mod 9 (b) (d) 5x + 8y 2 mod 9

You have to find the angle i don’t know if i i try

Hope this ; )

Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c