一道计算题
(√6+√2)(√3-2)√(√3+2)
参考答案:(√6+√2)(√3-2)√(√3+2)
=(3√2+√6-2√6-2√2)√(√3+2)
=(√2-√6)√(√3+2)
=(√2-√6)(√6+√2)/2
=-4/2
=-2
补充说明:√(√3+2)=1/2√(8+4√3)=1/2√【(√6+√2)^2】=
(√6+√2)/2
(√6+√2)(√3-2)√(√3+2)
参考答案:(√6+√2)(√3-2)√(√3+2)
=(3√2+√6-2√6-2√2)√(√3+2)
=(√2-√6)√(√3+2)
=(√2-√6)(√6+√2)/2
=-4/2
=-2
补充说明:√(√3+2)=1/2√(8+4√3)=1/2√【(√6+√2)^2】=
(√6+√2)/2