Q. (80i)−(80+10i)=Express your answer in the form (a+bi).
Identify Complex Numbers: Identify the real and imaginary parts of the complex numbers.The first complex number is 80i, which has 0 as its real part and 80 as its imaginary part.The second complex number is 80+10i, which has 80 as its real part and 10 as its imaginary part.
Subtract Real and Imaginary Parts: Subtract the real parts and the imaginary parts separately.Subtract the real part of the second complex number from the real part of the first complex number (which is 0), and subtract the imaginary part of the second complex number from the imaginary part of the first complex number.Real parts: 0−80=−80Imaginary parts: 80i−10i=70i
Combine Results: Combine the results to express the answer in the form a+bi.Combine the real part and the imaginary part obtained from Step 2.−80+70i
More problems from Add, subtract, multiply, and divide complex numbers