Question

Evaluate the expression for x = -1.

-l -x l + l x l

Answer 1

Answer:

Step-by-step explanation:

-l -x l + l x l = -I -(-1)I + I -1I      {absolute value is always positive}

                  = - I 1 I + 1  = -1 + 1 = 0

Answer 2

Answer:

it is 0

Step-by-step explanation:

answer 0