Answer :
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:
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