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√-8 (√-19-√11)=___+___i??
please help me and explain?
√-8 (√-19-√11)= 2√2 i ( √19 i - √11)
= 2√2 i * √19 i - 2√2 i * √11)
= -2√38 - 2√22 i)
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√-8 (√-19-√11)= 2√2 i ( √19 i - √11)
= 2√2 i * √19 i - 2√2 i * √11)
= -2√38 - 2√22 i)