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Mathematics
OpenStudy (anonymous):
√-49 ________________ (7 - 2i)-(4 + 9i)
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jhonyy9 (jhonyy9):
do you know what is sqrt(-1) ?
jhonyy9 (jhonyy9):
can you calcule with complex numbers ?
OpenStudy (anonymous):
I just figured it out lol
jhonyy9 (jhonyy9):
add the same terms like 7-4 and -2i-9i
jhonyy9 (jhonyy9):
so and do you know the right answer ?
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OpenStudy (anonymous):
yes
jhonyy9 (jhonyy9):
how many is i^2 = ?
jhonyy9 (jhonyy9):
so in numerator will have -7 right ?
jhonyy9 (jhonyy9):
not is the right numerator is 7i
jhonyy9 (jhonyy9):
7i ------ 3-11i
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