√ (8+4√3 )等于多少啊?如何化简
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√ (8+4√3 )等于多少啊?如何化简
√ (8+4√3 )等于多少啊?如何化简
√ (8+4√3 )等于多少啊?如何化简
√(8+4√3)
=√[(16+8√3)/2]
=√[(2√3+2)²/2]
=(2√3+2)×1/√2
=(2√3+2)×√2/2
=(√3+1)×√2
=√6+√2
√ (2√3)的平方+4√3 +1=√ (2√ 3+1)的平方=2√ 3+1
√ (8+4√3 )=√ (8+2√12 )
=√ (6+2√12+2 )
=√ (6+2√12+2 )
=√ ( √6+ √2 )∧2
=√6+ √2