SOLUTION: Express the following in the form of a+ib, a, b belongs to R, i=square root of -1. State the values of a and b (2+i)upon (3-i)(1+2i)

Algebra.Com
Question 888267: Express the following in the form of a+ib, a, b belongs to R, i=square root of -1. State the values of a and b
(2+i)upon (3-i)(1+2i)

Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
Do you mean, or you must mean, this:


Simplify for denominator first.







Use the conjugate of the denominator.
, which is multiplication by 1,

, notice, difference of two squares...










RELATED QUESTIONS

(a)Find the (multiplicative) inverse of the complex number (3-i)^2 in the form a+ib, a,b... (answered by venugopalramana)
Express in the from of a+ib a,b€R,i=-1^ state thr the value of a and b... (answered by greenestamps)
Express (i-1)^1+i, in the form... (answered by tommyt3rd)
Express (1+i)^i in the form... (answered by tommyt3rd)
Express (1 – i) – (-1 + 6i) in the form of a + ib. (answered by MathLover1)
Express 4-3i/2+i in the form... (answered by mananth)
Express the following as a complex number in the form a + ib: (3 - i) (5 +... (answered by tran3209)
Express 3+4i in polar form and hence determine the exact square roots of 3+4i in the... (answered by stanbon)
What is the smallest group that 17 belongs to? * N Z R I Q What groups does -15... (answered by Solver92311)