Register

If i=√ -1 then (4-i) (4+i)= A) 15 B) 16 C) 17 D) 17-8i E) 17+8i

If i=√ -1 then (4-i) (4+i)= A) 15 B) 16 C) 17 D) 17-8i E) 17+8i
199k views
0 votes
If i=√ -1 then (4-i) (4+i)=

A) 15
B) 16
C) 17
D) 17-8i
E) 17+8i

User AlexD
by
7.8k points

1 Answer

1 vote
I think the answer is

C. 17
User Sifriday
by
7.9k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Link Copied!