1) (-6,4) is in quadrant: a) 1st b) 2nd c) 3rd d) 4th 2) The sum of two complementary angles is: a) 90 º b) 180 º c) 360 º d) 100 º 3) The distance of any two point of a circle from its center is called: a) Radius b) Diameter c) Chord d) Tangent 4) The characteristic of log 0.00226 is: a) -3 b) -2 c) 3 d) 2 5) If a+b=2 and a-b =2 then the value of a2 -b2  a) 8 b) 6 c) 4 d) 2 6) If a:b::b:c then b is called: a) 1st proportion b) Mean Proportion c) 4th proportion d) None of these 7) 81/3 X 361/2  a) 48 b) 12 c) 16 d) None of these 8) If logx 81 = 4 then X= a) 3 b) 4 c) 16 d) 9 9) If the standard deviation of a series is 4, then its variance is: a) 20 b) 36 c) 2 d) 16 10) 1 + tan2 Ø =  a) Sec2 Ø b) Cosec2 Ø c) Sin2 Ø d) None of these 11) The sum of angles of a Parallelogram is: a) 180º b) 240º c) 320º d) 360º 12) The LCM of 9X2 and 15X is: a) 24X2 b) 45X2 c) 135X2 d) 135X3 13) If the determinant of matrix is zero, the matrix is called a/an: a) identity matrix b) Singular matrix c) Null matrix d) Non-singular matrix 14) The square root of (a-b)2 is: a) ±(a-b) b) ± (a+b) c) (a-b)(a+b) d) None of these

Math X 2018

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