1) (A')' =?: a) A b) A' c) ɸ d) U 2) If a+b =2 and a-b =2 then a2+b=? : a) -1 b) 2 c) 4 d) 3/2 3) The H.C.F of x4-y4 qnd x2+y2 is: a) x4-y4 b) x2+y2 c) (x2+y2)(x2-y2) d) x2-y2 4) tan x/sin x"?: a) cos x b) sec x c) cot x d) cosec x 5) In right-angled triangle the side opposite to 90º is called: a) Hypotnuse b) Base c) Perpendicular d) None of these 6) The range of 42,55,50, 53, 60, 35, 40 is: a) 50 b) 27 c) 40 d) none of these 7) The point throught which medians of triangle pass is called: a) Orthocenter b) Centroid c) Circumcenter d) In-center 8) Solution set of √2x+3 =2 is: a) 1/2 b) -1/2 c) { } d) -1 9) If a/b = c/d, the a+b/b =c+d/d is the property: a) Componendo b) Divindado c) Alternando d) Invertendo 10) Sin 30º=? : a) sin 60º b) cos 60º c) tan 30º d) cot 30º 11) An angle inscribed in a semi circle is of: a) 180º b) 360º c) 0º d) 90º 12) (√2+1)(√2-1)+?: a) 2 b) 0 c) 1 d) √2 13) If R={(1,2),(2,3),(3,4)} Domain R=?: a) {1} b) {1,2} c) {1,2,3} d) {2,3} 14) If log 10 1000 =y the value of y will be: a) 10 b) 3 c) 5 d) 0 15) Median of 1,3,8,11,15,18,19 is: a) 11 b) 15 c) 13 d) none of these 16) A∆B =?: a) AUB b) (A∩B)-(AUB) c) A∩B d) (AUB)-(A∩B) 17) Multiplicative inverse of a-b is: a) a+b b) -a+b c) 1/a-b d) 1/a+b

Math X 2012

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