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Karnataka state board exam SSLC questions of Mathematics are given below: A is a matrix. If A = A / then the matrix is a (A) scalar matrix (B) skew symmetric matrix (C) unit matrix (D) symmetric matrix. Coefficients of variation of Bhavana and Rashmi are 8•5 and 12•8 respectively. Which of the following is a correct statement ? (A) Bhavana is more consistent than Rashmi (B) Rashmi is more consistent than Bhavana (C) Bhavana and Rashmi both are equally The graph of y = 3 is a straight line (A) passing through origin (B) perpendicular to xaxis (C) parallel to xaxis and passing through 3 on yaxis (D) parallel to yaxis and passing through 3 on xaxis. If the roots of an equation x 2 – mx + 16 = 0 are equal, then the value of m is (A) ± 4 (B) ± 16 (C) ± 2 The set of residues of modulo 4 is (A) { 0, 1, 2, 3 } (B) { 0, 1, 2, 3, 4 } (C) { 1, 2, 3 } (D) { 1, 2, 3, 4 } . If y ⊗ y ≡ 1 ( mod 8 ), then the value of y is (A) 6 (B) 3 (C) 8 (D) 4. For more questions,here I am giving attachment Last edited by Aakashd; May 25th, 2019 at 04:21 PM. 