Write the expression in standard form.

6/(4-13i)

Question

Write the expression in standard form.

6/(4-13i)

anonymous · Answer

A: (-24/185) - (78/185)i
B: (24/185) + (78/185)i
C: (-24/185) + (78/185)i
D: (24/185) - (78/185)i

anonymous · Answer

This is very similar to 'rationalising the denominator', but instead you are rationalising the denominator. Are you familiar with what you have to do for this?

anonymous · Answer

sorry, but instead you are making the denominator real :S

hartnn · Answer

First try to make the denominator real,by multiplying the numerator and denominator by complex conjugate of 4+13i....do u know complex conjugate of 4+13i?

anonymous · Answer

$$\huge 0.12972973 + 0.421621622 i $$

anonymous · Answer

i see, thanks guys!

anonymous · Answer

the answer i got was (24/185) - (78/185)i

hartnn · Answer

since u multiplied by (4+13i),u should get + in the answer for imaginary part...values are correct....

anonymous · Answer

i thought i had to multiply it by 4-13i

hartnn · Answer

oops,my typo....sorry....u always multiply by complex conjugate....complex conjugate of 4-13i is 4+13i....ok now?

hartnn · Answer

then u will get your answer as (24/185) + (78/185)i which is correct....

anonymous · Answer

thank you very much!