Is it true that 9, 9 and 9 are equal to 5 with any sign?

Is it true that 9, 9 and 9 are equal to 5 with any sign?


Four 9 lines, (! 9 +! 9 +! 9)! - (! 9)! = 3! - 0! = 6-1 = 5
The exclamation mark before the number is negative, and the factorial after it



6 5 4 3 2 = 10 what operation symbols and brackets should be added between these numbers to make the formula true


6+5+4-3-2=10



Add operation symbols and brackets between 1 and 2.3.4.5 to make their sum equal to 33





What is the vertical symbol of the corner?
What is the vertical symbol of the corner


Draw a right angle at the right angle to show that the angle is a right angle and the vertical symbol is ⊥