NDA Maths Mock Test – 01 – Q15
Question: The smallest positive integer n for which [(1 – i) / (1 + i)]n2 = 1, where i =
Question: The smallest positive integer n for which [(1 – i) / (1 + i)]n2 = 1, where i =
Question: Suppose, ω is a cube root of unity with ω ≠ 1. Suppose, P and Q are the points
Question: What is the value of [( i + √3) / 2]2019 + [( i – √3) / 2]2019? What
Question: If a, b, c are in A.P., a, mb, c are in G.P., then a, m2b, c are in
Question: In an infinite G.P., each term is equal to the sum of all the terms which follow it. The
Question: If pth, qth and rth terms of an A.P. are in G.P., then the common ratio of this G.P.
Question: If y = x + x2 + x3 + … ∞ where |x| < 1, then x = ?
Question: If the ratio of AM and GM of two positive numbers a and b is 5 : 3, then
Question: The function f : R → R is defined by f(x) = sin4 x – sin2 x + 1,
Question: R is a relation from {11, 12, 13} to {8, 10, 12} defined by y = x – 3.