1.

If Z=4+3i.find z².

Answer» 7+24i
24(1+i)
Using the formula of (a+b)^2Z^2=(4+3i)^2 =(4)^2 + (3i)^2 +2*4*3i =16 - 9 + 24i =7+24i
7+24¡.


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