✨ ベストアンサー ✨
⑵
a = 2^0.5, b = -2^0.5, a+b = 0
⑶
a = 2^0.5, b = 1/(2^0.5), ab = 1
⑷
a = 4, a^0.5 = 2
⑸
a = (2^0.5)^0.5, a^2 = 2^0.5
✨ ベストアンサー ✨
⑵
a = 2^0.5, b = -2^0.5, a+b = 0
⑶
a = 2^0.5, b = 1/(2^0.5), ab = 1
⑷
a = 4, a^0.5 = 2
⑸
a = (2^0.5)^0.5, a^2 = 2^0.5
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