MATH 1201 Unit 4, Challenge 4: Complex Numbers and College Algebra in Context

MATH 1201 Unit 4, Challenge 4: Complex Numbers and College Algebra in Context If you have , this is the same as . Recall that , or , equals . There are four sets of that can be replaced with : Which of the following is equivalent to ? • c.)Correct.If you have , this is the same as . Recall that , or , equals . There are three sets of that can be replaced with : Which of the following is equivalent to ? • b.)Correct.If you have , this is the same as . Recall that , or , equals . There are three sets of that can be replaced with : Add and Subtract Complex Numbers Find the sum of the following expression: a.)Correct. When adding complex numbers, you will add the real numbers together and add the imaginary parts together. The two real numbers equal The two imaginary parts equal . Together, this expression equals . Find the difference of the following expression: Find the difference of the following expression: • b.)Correct.When subtracting complex numbers, you will subtract the real numbers from each other and subtract the imaginary parts from each other. The two real numbers equal . The two imaginary parts equal . Together, this expression equals . Find the difference of the following expression: • c.)Correct.When subtracting complex numbers, you will subtract the real numbers from each other and subtract the imaginary parts from each other. The two real numbers equal . The two imaginary parts equal . Together, this expression equals . Multiply Complex Numbers Select the product in the standard form . b.)Correct. When multiplying two complex numbers, you will use FOIL: Replace with and combine like terms. Select the product in the standard form . c.)Correct. When multiplying two complex numbers, you will use FOIL: Replace with and combine like term: