1) R+ ∪ R- =  a) R b) R+ c) ∅ d) R* 2) If 2 x-1  = 1 , what is the value of x ? a) 0 b) -1 c) 1 d) -2 3) Sixth the number : 212 x 312 =  a) 62 b) 64 c) 611 d) 623 4) The value of 311 + 312 a) 4 x 310 b) 3 x 322 c) 4 x 320 d) 4 x 311 5) The S.S of the equation 2X2 -7X -4=0 in R is a) {0} b) { 0.5} c) { 0.5 , -4} d) { - 0.5 , 4 } 6) IF X + Y =4 , 3X2 - 3Y2 = 24 , Then X-Y = a) 2 b) 6 c) 8 d) 20 7) The value of k that makes Kx2 + 12xy +9y2  perfect square is a) 3 b) 4 c) 5 d) 16 8) If (4a2 - 2a +1) is one of factors of the expression ( 8a3 +1) , then the other factor is  a) a+2 b) 2a+1 c) 2a - 1 d) 4a + 1

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