If an array is declared as `arr[] = { 1,5 ,8 , 9 }`, what is the value of `arr[3]`

What is the value of |-9|-|-5| ?

7 * 1 = 64, 3 * 9 = 144 What is the value of 5 * 6 ?

If 5 xx 7 = 5, 12 xx 3 = 6, 8 xx 9 = 2 what is the value of 6 x 8 = ?

If A=[[1,-5,70,7,911,8,9]] then the value of tra is

If + maans -:, -: means -, - means xx and xx means +, what will be the value of the following expression: 8+4-:3xx5-9=?

If A = {1, 3, 9, 10, 21), B= {4, 6, 8, 10} and C = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, then the value of A cap (B cap C) is

If |(8,-5,1),(5,x,1),(6,3,1)| = 2 , then what is the value of x ?