Friday

February 27, 2015

February 27, 2015

Posted by **Jon** on Tuesday, February 19, 2008 at 12:51pm.

A)(1/3)+(2/3i)

B)(1/5)+(2/5i)

C)(1/3)+(i)

D)(1/5)+(3/5i)

I have no clue please explain

- math -
**Reiny**, Tuesday, February 19, 2008 at 12:56pmsimilar to "rationalizing the denominator"

Multiply top and bottom by 2+i and remember that i^2 = -1

(1+i)/(2-i) x (2+i)/(2+i)

= (2+i+2i+i^2)/(4-i^2)

= (2+3i-1)/(4-(-1))

= (1+3i)/5

- math -
**Reiny**, Tuesday, February 19, 2008 at 12:58pmbtw, the choice that fits my answer would be D, they simply split it into 2 parts.

I don't know why they would do that

**Answer this Question**

**Related Questions**

algebra 1A - HELP ME.simplify{[4(z-4)+18]-[3(2z-2)+4]} 6{[4(z-4)+18]-[3(2z-2)+4...

math - I HAVE TWO QUESTIONS: I HAVE TO MULTIPLY AND SIMPLIFY AND I HAVE NO CLUE ...

math,correction - Can someone help me with these...plz Simplify 2radical (12) + ...

5th grade Math - Clue 1: i am greater than 100,000, but less than 120,000. Clue ...

Math 141 - I am having trouble with this problem. perform the indicated ...

Algebra - Simplify: (1+i)/(2-i) A)(1/3)+(2/3i) B)(1/5)+(2/5i) C)(1/3)+(i) D)(1/5...

math - clue#1 You will use exactly eleven base-ten blocks. Clue#2 The number is ...

math-functions starting - -3f(x-4)=x^2 i have no clue what to do with the -3 in ...

Math - Clue 1: When you divide me by 5, the remainder is 4. Clue 2: I have two ...

Algebra - I have no clue here. Simplify -8[0 - (97-95)]=_________.