Toán Lớp 9: Rút gọn biểu thức :
a) $\frac{a√a + 1}{√a +1}$ + $\frac{a-√a}{√a-1}$ ( a ≥0 ; a khác 1)
b) P =( $\frac{1-a√a }{1-√a}$ + √a ) ( $\frac{1-√a}{1-a}$ ) ²
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Toán Lớp 9: Rút gọn biểu thức :
a) $\frac{a√a + 1}{√a +1}$ + $\frac{a-√a}{√a-1}$ ( a ≥0 ; a khác 1)
b) P =( $\frac{1-a√a }{1-√a}$ + √a ) ( $\frac{1-√a}{1-a}$ ) ²
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