What is the result of the division w/z, where w = a + bi and z = c + di? z has an inverse element for multiplication the division is defined only ...
What is the result of the division w/z, where w = a + bi and z = c + di?
z has an inverse element for multiplication
the division is defined only if z is different from zero
the division is defined only if c^2 + d^2 is different from zero
the division is given by (ac + bd)/(c^2 + d^2) + (bc - ad)i/(c^2 + d^2)
a) I and II are correct
b) I and III are correct
c) II and IV are correct
d) III and IV are correct
e) I, II, III, and IV are correct
z has an inverse element for multiplication
the division is defined only if z is different from zero
the division is defined only if c^2 + d^2 is different from zero
the division is given by (ac + bd)/(c^2 + d^2) + (bc - ad)i/(c^2 + d^2)
a) I and II are correct
b) I and III are correct
c) II and IV are correct
d) III and IV are correct
e) I, II, III, and IV are correct
💡 1 Resposta
Ed 
O resultado da divisão w/z, onde w = a + bi e z = c + di é dado por (ac + bd)/(c^2 + d^2) + (bc - ad)i/(c^2 + d^2). Portanto, a alternativa correta é a letra d) III e IV estão corretas.
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