CBSE Class 11 (Science) Complex Numbers — practice questions
25 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 (Science) Complex Numbers in the app →The value of i⁴ⁿ⁺³ (n a positive integer) isThe modulus of the complex number 3 + 4i isThe conjugate of (2 − 3i) isIf z = 1 + i, then z² equalsThe argument (principal value) of the complex number i isThe multiplicative inverse of (3 + 4i) isFor complex numbers, which relation is NOT defined?The roots of x² + 1 = 0 areIf z = a + ib is purely imaginary, thenThe value of (1 + i)/(1 − i) is|z₁ z₂| equalsIn z = a + ib, Re(z) and Im(z) areThe complex number i is defined by:For the complex number z = 2 + 5i, Re z and Im z are:The conjugate of the complex number z = 2 - 5i is:If 4x + i(3x - y) = 3 + i(-6), then x and y are:Compute (3 + 5i)(2 + 6i).What is i^35?The modulus |3 + i| equals:The multiplicative inverse of z = 2 - 3i is:Express (5 + √2 i)/(1 - √2 i) in the form a + ib.Find the value of i^(-39).Compute (5 - 3i)³.If x + iy = (a + ib)/(a - ib), then x² + y² equals:Identify the standard form of (-i)(2i)(-i/8)³.