Multiple ChoiceIdentify the real and imaginary parts of each complex number. −4−9i-4-9i−4−9i229views1rank
Multiple ChoiceIdentify the real and imaginary parts of each complex number. 3+2i33+2i\sqrt33+2i3313views1rank
Multiple ChoiceWrite the complex number in standard form. 9+−163\frac{9+\sqrt{-16}}{3}39+−16209views4rank
Multiple ChoiceFind the difference. Express your answer in standard form. (2+8i)−(4−i)\left(2+8i\right)-\left(4-i\right)(2+8i)−(4−i)183views
Multiple ChoiceFind the sum. Express your answer in standard form. 5(4+7i)+6(3−2i)5\left(4+7i\right)+6\left(3-2i\right)5(4+7i)+6(3−2i)171views1rank
Multiple ChoicePerform the indicated operation. Express your answer in standard form. (3+8i)2\left(3+8i\right)^2(3+8i)2192views
Multiple ChoiceFind the product. Express your answer in standard form. 2i(9−4i)(6+5i)2i\left(9-4i\right)\left(6+5i\right)2i(9−4i)(6+5i)181views2rank
Multiple ChoiceFind the product of the given complex number and its conjugate. 4−5i4-5i4−5i183views
Multiple ChoiceFind the product of the given complex number and its conjugate. −7−i-7-i−7−i220views2rank
Multiple ChoiceFind the quotient. Express your answer in standard form. 6+i4−2i\frac{6+i}{4-2i}4−2i6+i186views
Multiple ChoiceFind the quotient. Express your answer in standard form. −5+3i−7−4i\frac{-5+3i}{-7-4i}−7−4i−5+3i156views4rank
Textbook QuestionIn Exercises 1–8, add or subtract as indicated and write the result in standard form. (7 + 2i) + (1 - 4i)335views
Textbook QuestionIn Exercises 1–8, add or subtract as indicated and write the result in standard form. (3 + 2i) - (5 - 7i)193views
Textbook QuestionIn Exercises 1–8, add or subtract as indicated and write the result in standard form. 6 - (- 5 + 4i) - (- 13 - i)371views1rank
Textbook QuestionDecide whether each statement is true or false. If false, correct the right side of the equation. √-25 = 5i216views
Textbook QuestionDecide whether each statement is true or false. If false, correct the right side of the equation. i^12 = 1196views
Textbook QuestionDecide whether each statement is true or false. If false, correct the right side of the equation. (-2+7i) - (10-6i)= -12+i225views
Textbook QuestionIn Exercises 9–20, find each product and write the result in standard form. (7 - 5i)(- 2 - 3i)202views
Textbook QuestionIn Exercises 9–20, find each product and write the result in standard form. (3 + 5i)(3 - 5i)196views
Textbook QuestionIn Exercises 9–20, find each product and write the result in standard form. (- 5 + i)(- 5 - i)179views
Textbook QuestionIdentify each number as real, complex, pure imaginary, or nonreal com-plex. (More than one of these descriptions will apply.) √24225views
Textbook QuestionIdentify each number as real, complex, pure imaginary, or nonreal com-plex. (More than one of these descriptions will apply.) √-36266views
Textbook QuestionIn Exercises 21–28, divide and express the result in standard form. 2i/(1 + i)211views
Textbook QuestionIn Exercises 21–28, divide and express the result in standard form. 5i/(2 - i)224views
Textbook QuestionIn Exercises 21–28, divide and express the result in standard form. 8i/(4 - 3i)241views
Textbook QuestionIn Exercises 29–36, simplify and write the result in standard form. √(3^2 - 4 × 2 × 5)209views
Textbook QuestionIn Exercises 29–36, simplify and write the result in standard form. √(1^2 - 4 × 0.5 × 5)203views
Textbook QuestionIn Exercises 37–52, perform the indicated operations and write the result in standard form. (- 3 - √-7)^2205views
Textbook QuestionIn Exercises 37–52, perform the indicated operations and write the result in standard form. (- 8 + √-32)/24321views
Textbook QuestionIn Exercises 37–52, perform the indicated operations and write the result in standard form. (- 6 - √-12)/48203views1rank
Textbook QuestionFind each sum or difference. Write answers in standard form. (2-5i) - (3+4i) - (-2+i)357views
Textbook QuestionFind each sum or difference. Write answers in standard form. (-4-i) - (2+3i) + (-4+5i)180views
Textbook QuestionFind each sum or difference. Write answers in standard form. 3√7 - (4√7-i) -4i + (-2√7+5i)221views1rank
Textbook QuestionIn Exercises 53–60, write each power of i as as i, - 1, - i, or 1. i^135211views1rank
Textbook QuestionIn Exercises 65–70, perform the indicated operation(s) and write the result in standard form. (2 - 3i)(1 - i) - (3 - i)(3 + i)204views
Textbook QuestionIn Exercises 65–70, perform the indicated operation(s) and write the result in standard form. (8 + 9i)(2 - i) - (1 - i)(1 + i)210views
Textbook QuestionIn Exercises 65–70, perform the indicated operation(s) and write the result in standard form. (2 + i)^2 - (3 - i)^2209views
Textbook QuestionIn Exercises 95–99, perform the indicated operations and write the result in standard form. 4/(2 + i)(3 - i)328views
Textbook QuestionIn Exercises 95–99, perform the indicated operations and write the result in standard form. (1 + i)/(1 + 2i) + (1 - i)/(1 - 2i)201views