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换元法是解数学题常用的一种解题方法,在解二次根式题中也得到广泛的运用. 例1 若a=4+3,b=4-3,求的值.
The substitution method is a commonly used method for solving mathematics problems. It is also widely used in the solution of quadratic root problems. Example 1 If a=4+3, b=4-3, find the value.