Question

Find the value of each variable. Help asappppp

Answer 1

Explanation:

to find u

`cos45 = (y)/(20 √(2) ) \\ y = cos45 * 20 √(2 ) \\ y = 20`

`{(20 √(2) )}^(2) - {20}^(2) \\ 800 - 400 = 400 \\ {x}^(2) = 400 \\ x = 20`