(1) Respostas
a- 1 + 3i + (-2 +i)= 1 + 3i - 2 +i= 4i - 1 b- (1 +3i). (-2 + i)= -2 +i - 6i +3 i²= -2 +i - 6i + 3. -1= -2 -5i -3= -5i - 5 c- ( 1 + 3i)²= 1² + 2. 3i. 1 + (3i)²= 1 + 6i + 9 i ²= 1 + 6i - 9= 6i -8
Adicionar resposta
Sign in
Cadastro
a- 1 + 3i + (-2 +i)= 1 + 3i - 2 +i= 4i - 1 b- (1 +3i). (-2 + i)= -2 +i - 6i +3 i²= -2 +i - 6i + 3. -1= -2 -5i -3= -5i - 5 c- ( 1 + 3i)²= 1² + 2. 3i. 1 + (3i)²= 1 + 6i + 9 i ²= 1 + 6i - 9= 6i -8