√-16+3√-25+√-36-√-625
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5
Answer:
is 0
Sol:
√-16+3√-25+√-36-√-625
= 4i + 3(5i) + 6i - 25i
= 4i + 15i + 6i - 25i
= 19i - 19i
= 0
Note: (i² = -1) related to complex number
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