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suppose you have square root of -16 times square root of -25 (in separate square root symbols).
would the answer be:
a) no solution - can't have negative square roots
b) 4i times 5i which equals 20i^2 which is -20
c) -16 times -25 which is +400, then the square root of that is 20
which one is correct?
would the answer be:
a) no solution - can't have negative square roots
b) 4i times 5i which equals 20i^2 which is -20
c) -16 times -25 which is +400, then the square root of that is 20
which one is correct?