Question

(1) The product of xyz and xyz is

(A) 2xyz (B) 0 (C) x²y²z² (D) -2xyz

(2) (a-b)²-(a+b)²=______

(A) 0 (B) 4ab (C) -4ab (D) 1

(3) 49x²-25y²=________

(A) (7x-5y)² (B) (7x-5y)(7x-5y)

(C) (7x+5y)(7x-5y) (D) (7x+5y) (7x+5y)

(4) The Reciprocal of ‘a’ is

(A) (-a) (B) a (C) 1/a (D) -1/a

(5) ________ is the additive inverse of 3/-4

(A) -4/5 (B) 3/4 (C) -3/4 (D) 0

(6) a/b ÷ c/d = ________

(A) a/d ÷ b/c (B) 1

(C) ab/cd (D) ad/bc

(7) Number of non-perfect square numbers lie between square of 26

and 27

(A) 11 (B) 12 (C) 50 (D) 52

(8) find the Reciprocal of -2

(A) -2 (B) 2 (C) ⅓ (D) -1/2

(9) Which of the following is an expression ?

(A) 1/2 (B) 4x+7 (C) 3 (D) 10​

Answer 1

Answer:

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