Express
square root(-48) + 3.5 + square root(25) + square root(-27)
in simplest a=bi form
Thanks!
10 pts for best answer!
2006-12-19 13:23:17 · 6 answers · asked by fachizzzzle 3 in Education & Reference ➔ Homework Help
I won't give you the answer, because you need to learn how to do it, BUT I can help you with it.
First, you know i stands for a square root that is impossible. and so you probably know you can't take the square root of a negative number. so that automatically makes sqrt(-48) an i and sqrt(-27) another i. so now you have:
i + 3.5 + sqrt25+i
combine the i's and combine the 3.5 and the sqrt25 and you have your answer.
hope that helped!
2006-12-19 13:48:37 · answer #1 · answered by ashleyrt1 2 · 0⤊ 1⤋
i is an imaginary number, it is the representation of sqrt(-1). therefore, i^2 = -1.
then sqrt(-48) = i(sqrt48) and likewise sqrt(-27) = i(sqrt27). those numbers don't have sqrts without lots of decimal places, so I don't want to write them out, you can solve that no problem yourself. you can then undistribute the i which gives you i(squrt48+sqrt27) other that that, add 3.5 to 5. then you get
8.5 +i(sqrt48+sqrt27).
piece of cake!
2006-12-19 22:26:44 · answer #2 · answered by dali_lama_2k 3 · 0⤊ 0⤋
use your calc, dude...it's not very hard...for goodness sake use your p.c yourself instead of trying an easier way.
2006-12-19 21:50:16 · answer #3 · answered by gonetoprison 2 · 0⤊ 0⤋
Sorry, don't know the answer.
2006-12-19 21:37:44 · answer #4 · answered by Anonymous · 0⤊ 0⤋
yeah!
2006-12-19 21:35:06 · answer #5 · answered by ispakles 3 · 0⤊ 0⤋
DO YOUR OWN HOMEWORK!!!
2006-12-19 21:25:15 · answer #6 · answered by Anonymous · 2⤊ 1⤋