b) 8 279 NI <18 48. Solve - 7>2-19 d) z<21 b) z < 15 a) z <12 luln is 5 sm and its area is 20 cm', then the height of the

Directions: Find out the wrong number in each sequence: 22, 33, 66, 99, 121, 279, 594 (a) 33 (b) 121 (c) 279 (d) 594

The coefficient of x^(19) in the polynomial (x-1)(x-2)(x-2^2)(x-2^(19)) is 2^(20)-2^(19) b. 1-2^(20) c. 2^(20) d. none of these

The coefficient of x^(19) in the polynomial (x-1)(x-2)(x-2^(2))...(x-2^(19)) is 2^(20)-2^(19) b.1-2^(20) c.2^(20) d.none of these

The coefficient of x^(19) in the polynomial (x-1)(x-2)(x-2^2)(x-2^(19)) is 2^(20)-2^(19) b. 1-2^(20) c. 2^(20) d. none of these

The coefficient of x^(19) in the polynomial (x-1)(x-2)(x-2^2).......(x-2^(19)) is 2^(20)-2^(19) b. 1-2^(20) c. 2^(20) d. none of these

If a and b be positive integers such that a^2-b^2=19 , then the value of a is 9 (b) 10 (c) 19 (d) 20

Which is the greatest 5 -digit number exatly divisible by 279?99603 (b) 99550(c) 99882 (d) None of these

The value of tan(cos^(-1)(3/5)+tan^(-1)(1/4)) is (a) (19)/8 (b) 8/(19) (c) (19)/(12) (d) 3/4

If z_1,z_2,z_3,z_4 are imaginary 5th roots of unity, then the value of sum_(r=1)^(16)(z1r+z2r+z3r+z4r),i s 0 (b) -1 (c) 20 (d) 19

If z_1,z_2,z_3,z_4 are imaginary 5th roots of unity, then the value of sum_(r=1)^(16)(z1r+z2r+z3r+z4r),i s 0 (b) -1 (c) 20 (d) 19