
求解!!要过程
2个回答
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原式=a(x+√x²-a²)/(x-√x²-a²)(x+√x²-a²)
=a(x+√x²-a²)/[x²-(√x²-a²)²]
=a(x+√x²-a²)/[x²-(x²-a²)]
=a(x+√x²-a²)/a²
=(x+√x²-a²)/a
=a(x+√x²-a²)/[x²-(√x²-a²)²]
=a(x+√x²-a²)/[x²-(x²-a²)]
=a(x+√x²-a²)/a²
=(x+√x²-a²)/a
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