(√2/2)x + y/√2 = 0
(√2/2)x = -y/√2
(√2/2)x = -y√2/√2*√2
(√2/2)x = -y√2/√2²
(√2/2)x = -y(√2/2)
x = -y
√2x/2 + y/√2 = 0
√2x/2 + √2y/2 = 0
x + y = 0
pronto
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(√2/2)x + y/√2 = 0
(√2/2)x = -y/√2
(√2/2)x = -y√2/√2*√2
(√2/2)x = -y√2/√2²
(√2/2)x = -y(√2/2)
x = -y
√2x/2 + y/√2 = 0
√2x/2 + √2y/2 = 0
x + y = 0
pronto