The sum of the series 2 + 2/3 + 2/9 + … is _____.A. 2B. 3C. 3.4D. 3.522. What is the rank of the matrix1 2 32 4 65 10 15      ?A. 1B. 2C. 3D. 023. Solution of the equation sin2x = 1 is ______.A. ∏/4, 3∏/4B. 3∏/4, ∏/2C. ∏/4, 3∏/2D. 3∏/2, ∏/2ANSWER KEY1 D 7 C 13 A 19 D2 D 8 A 14 D 20 C3 D 9 D 15 B 21 B4 A 10 A 16 B 22 A5 D 11 C 17 A 23 D6 A 12 C 18 A

SAMPLE PAPER-USAT-COMPUTER SCIENCEMATHEMATICS21. The sum of the series 2 + 2/3 + 2/9 + … is _____.A. 2B. 3C. 3.4D. 3.522. What is the rank of the matrix1 2 32 4 65 10 15     

What is the rank of the matrix ⎡⎣⎢⎢⎢442670003639021328412⎤⎦⎥⎥⎥[473024062820314609312]?a.3b.4c.5d.2

The rank of the following matrix [123246369]⎣⎡​ 123​ 246​ 369​ ⎦⎤​ is

The rank of the matrix ⎛⎝⎜⎜⎜211142346345⎞⎠⎟⎟⎟(246123134145) is

. Find the rank of the matrix A by normal form method where1 2 1 34 1 2 1 .3 1 1 21 2 0 1