if 1/2 = 1/y+2-(1) then y=?
Answers
Answered by
0
Answer:
Since x
2
+y
2
=1
So let x=cosθ and y=sinθ
∴
1+x−iy
1+x+iy
=
(1+cosθ)−isinθ
(1+cosθ)+isinθ
=
2cos
2
2
θ
−2isin
2
θ
cos
2
θ
2cos
2
2
θ
+2isin
2
θ
cos
2
θ
=
cos
2
θ
−isin
2
θ
cos
2
θ
+isin
2
θ
=
cos
2
θ
−isin
2
θ
cos
2
θ
+isin
2
θ
×
cos
2
θ
+isin
2
θ
cos
2
θ
+isin
2
θ
=
cos
2
2
θ
−i
2
sin
2
2
θ
(cos
2
θ
+isin
2
θ
)
2
=
cos
2
2
θ
+sin
2
2
θ
cos
2
2
θ
+i
2
sin
2
2
θ
+2icos
2
θ
cos
2
θ
=
1
cos
2
2
θ
−sin
2
2
θ
+2icos
2
θ
cos
2
θ
=cosθ+isinθ=x+iy
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Answered by
0
Answer:
y =2
Step-by-step explanation:
hope it helps you dear
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