Consider w = StartFraction StartRoot 2 EndRoot Over 2 EndFraction (cosine (225 degrees) + I sine (225 degrees) ) and z = 1(cos(60°) + isin(60°)). What is w + z expressed in rectangular form? StartFraction StartRoot 3 EndRoot minus 1 Over 4 EndFraction i StartFraction StartRoot 3 EndRoot + 1 Over 4 EndFraction i StartFraction StartRoot 3 EndRoot minus 1 Over 2 EndFraction i StartFraction StartRoot 3 EndRoot + 1 Over 2 EndFraction i