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Can you find the solution -4i + 7i?
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-11i
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7i
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3i
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None of the above
That's Correct!
It's Wrong!
The solution to -4i + 7i can be found by combining the real and imaginary parts separately. The real part of -4i is 0, and the real part of 7i is also 0. Therefore, the real part of the sum is 0. The imaginary part of -4i is -4, and the imaginary part of 7i is 7. Therefore, the imaginary part of the sum is 7 - 4 = 3. Thus, the correct answer is 3i.
