11th mathematics exercise questions with answers, Mathematics

Complex Numbers and Quadratic Equations – Class XI – Exercise 5.1

1: Express the given complex number in the form a + ib: (5i)(-3/5 i) Solution: (5i)(-3/5 i) = -5 x 3/5 x i x i = -3i2 = -3(-1) = 3 2: Express the given complex number in the form a + ib: i9 + i 19 Solution: i9 + i 19 = i4x2+1 +… Continue reading Complex Numbers and Quadratic Equations – Class XI – Exercise 5.1