(9/4)^2+(K/4)^2=(3-K/4)^2求K的值
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(9/4)^2+(K/4)^2=(3-K/4)^2求K的值(9/4)^2+(K/4)^2=(3-K/4)^2求K的值(9/4)^2+(K/4)^2=(3-K/4)^2求K的值63/24(9/4)^2+
(9/4)^2+(K/4)^2=(3-K/4)^2求K的值
(9/4)^2+(K/4)^2=(3-K/4)^2求K的值
(9/4)^2+(K/4)^2=(3-K/4)^2求K的值
63/24
(9/4)^2+(K/4)^2=(3-K/4)^2
9^2+K^2=(12-K)^2
81=144-24K
24K=63
K=63/24=21/8
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