Quiz on Complex Numbers The quiz is designed for the various curriculum students such as GCSE, IGCSE, ISC, IB, ICSE, CBSE, National Curriculum England and more. Start the quiz and learn math with fun! Quiz Level: Grade 11 & 12Total Questions: 10 1 / 10 Multiply and express '(5+i)(4+i)' in the form of 'a + ib'. 19 + 9i 9 - 19i 19 - 9i 9 + 19i 2 / 10 What is the value of complex number 'i²'? 0 1 -1 i 3 / 10 What is the standard form of complex numbers? a + ib a - b ia + ib a + b 4 / 10 Multiply and find the value of '(5i)(-3i)'? -15 -15i 15i 15 5 / 10 What is the value of complex number i9? 1 i -1 -i 6 / 10 What is the value of complex number i19? 1 i -1 -i 7 / 10 Multiply and express '(3+2i)(4-3i)' in the form of 'a + ib'. 12 - 6i 12 + 6i 18 - i 18 + i 8 / 10 Multiply and find the value of '(-4i)(-3i)'? 12 12i -12 -12i 9 / 10 What is the value of complex number i-39? -i -1 1 i 10 / 10 Multiply and express '(4-3i)(3-i)' in the form of 'a + ib'. 9 + 13i 12 + 3i 12 - 3i 9 − 13i Please enter your name below. Name Your score is LinkedIn Facebook VKontakte 0% Restart quiz Exit Send feedback ← Math Quiz index Limits →