Question

Indicated expression help please? Check my potential answers?

Answer 1

I think either B or D but I'm really confused

Answer 2

anybody? :/

Answer 3

you can multiply the top and bottom by the conjugate

Answer 4

Is that you in the pic? @JoeJoldin

Answer 5

\[\frac{ 5-4i }{ 8-3i } \times \frac{ 8+3i }{ 8+3i }\]

Answer 6

B
Do U get it?

Answer 7

are you happy with the answers given?

Answer 8

\[\frac{ 5-4i }{ 8-3i }\]
\[\frac{ 5-4i }{ 8-3i }\times \frac{ 8+3i }{ 8+3i }\] to cancel the i in the denominator
\[\frac{ (5*8)+(5*3i)-(4i*8)-(4i*3i) }{ (8*8)+(8*3i)-(3i*8)-(3i*3i)}\]

Answer 9

\[\frac{ 40+15i-32i-(-9) }{ 64+24i-24i-(-12)}\]
\[\frac{ 52-17i }{ 73 }=\frac{ 52 }{ 73 }-\frac{ 17 }{ 73 }i\]

Answer 10

i*i=i^2=-1

Answer 11

thank you so much

Answer 12

YW