#### NDA Exam Mathematics Study Material

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b) 1 - a

c) 1 + a

d) 1 + a

b) (-39, 3, 11)

c) (-39, 27, 11)

d) (-39, -3, 11)

b) ±√2

c) ±√3

d) √2 , √3

b) A. P.

c) H. P.

d) None of these

b) (-57/10)

c) 81/10

d) 55/10

b) 9x

c) A + b + c

d) 0

b) Pqr

c) Zero

d) 3pqr

b) -8

c) 400

d) 1

b) X = 0, y = 0

c) X = 0, y = 3

d) X = 1, y = 3

b) K/6

c) 2k

d) 3k