✨ Best Answer ✨
与式
=(3+2√2)¹⁹(3-2√2)¹⁹(√2+1)¹⁸(√2-1)¹⁸(3-2√2)²(√2+1)²
=(9-8)¹⁹(2-1)¹⁸(√2-1)²
=1×1×(3-2√2)
=3-2√2
✨ Best Answer ✨
与式
=(3+2√2)¹⁹(3-2√2)¹⁹(√2+1)¹⁸(√2-1)¹⁸(3-2√2)²(√2+1)²
=(9-8)¹⁹(2-1)¹⁸(√2-1)²
=1×1×(3-2√2)
=3-2√2
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