NDA MATHS QUESTION BANK
If is a complex cube root of unity, then what is equal to? (a) 2 (b) -1 (c) -2 (d) 1 If x + iy= | |, then what is x – iy equal ...
If 1, ω, are the three cube roots of unity, then what is ( ) ( )^ equal to?^ (a)^ (b) b (c) ω (d) If √^ , then what is the val ...
(a) 0 (b) 1 (c) 2(√ ) (d) - (^2) √ What is the value of ̅^ | |^ , if z= 3 + 2i? (a) 36 (b) 81 + 12i (c) 39 (d) 40 12i If ω ...
Find (^) √ a (^) ⁄ b (^) ⁄ C (a) 12 (b) 24 (c) (d) Find ....... Up to 198 terms (a) 100 (b) 10 (c) 2 (d) 0 Find number of ...
Find (a) 4 (b) 10000 (c) (d) 39996 Find log 48, if log 2= 0.3010 and log 3= 0.4771 (a) 1.6731 (b) 1.6811 (c) 1.6911 (d) 1.86 ...
If the matrix A= [^ ] is such that = I, then which one of the following is correct? (a) α= 0, β= 1 or α= 1, β= 0 (b) α=0, β≠1 ...
[ ] [ ] } A+B+C, where C= [ ]. What is the value of? (a) 7 (b) 8 (c) 5 (d) 2 If a matrix A is symmetric as well as anti- sym ...
If n≠3k and 1, are the cube roots of unity, then | | has the value: (a) 0 (b) (c) (d) 1 If X= 0 1 and I is a 2×2 identity mat ...
Under which of the following condition (s), will the matrix A= [ ] be singular? I. q= 0 II. P=0 III. P=20 Select the correct a ...
If the system of equations 2x+3y=7 and 2ax+(a+b) Y= 28 has infinetly many solutions, then which one of the following is correct ...
PERMUTATIONS AND COMBINATIONS The Value of^ ∑ is equal to: (a)^ (b)^ (c)^ (d) none of these The number of diagonals of an octag ...
A 5- digit number divisible by 3 is to be formed using the digits 0, 1, 2, 3, 4 and 5 without repetition. What is the total num ...
A team of 8 players is to be chosen from a group of 12 players. Out of the 8 players one is to be elected as captain and anothe ...
Three-digit numbers are formed using the digits 0, 2, 4, 6 and 8. A number is chosen at random out of these numbers. What is th ...
The chance of winning the race of the horse A is^ and that of horse B is^ , What is the probability that the race will be won ...
A card is drawn from a well- shuffled pack of 52 cards. The probability of its being a spade or a queen is: (a) (b)^ (c)^ (d) ...
neither in A nor in B? (a) 0.7 (b) 0.28 (c) 0.3 (d) 0.4 An aircraft has 3 engines A, B and C. The aircraft crashes, if all the ...
The equation x- has how many real roots? (a) 1 (b) 0 (c) 2 (d) ∞ The solution set for the equation ⁄^ ⁄^ - 2=0 (a) + (b) + ...
The roots of A Bx+C=0 are ‘r’ and ‘s’ for roots of +px+q=0, to be and find p (a)^ (^) (b) (c)^ (d)^ (^) 2AC Consider equation ...
RELATIONS AND FUNCTION Let M be the set of men and R is a relation ‘is son of’ defined on M. Then, R is (a) an equivalence (b) ...
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