show that √6+2√3+2√2+2√6 - 1/√5-2√6 is a rational number
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it is irrational number because
√6 become 2√3 and
2√3+2√3+2√2+2√6
4√3+2√2+4√3
8√3+2√2 is a rational number
√6 become 2√3 and
2√3+2√3+2√2+2√6
4√3+2√2+4√3
8√3+2√2 is a rational number
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