Number Systems Ex 1.1 Q 3,4

Let X = {1, 2, 3,.......... 10} and P = {1, 2, 3, 4, 5} . The number of subsets Q of X such that P Delta Q = {3) is __________

Express each of the following as a rational number of the form p/q : (i) (2^(-1)+3^(-1))^2 (ii) (2^(-1)-4^(-1))^2 ] (iii) {(3/4)^(-1)-(1/4)^(-1)}^(-1)

The 12 numbers, a _(1), a _(2)………, a _(12) are in arithmetical progression. The sum of al these numbers is 354. Let P = a _(2) + a _(4) + ……………a _(12) and Q = a _(1) + a _(3) + ……..+a _(11) . If the ratio P :Q is 32:27, the common difference of the progression is

Find the G.P. between the numbers . 1 and (4)/(25) " " (ii) p^(3)q and pq^(3) , p q gt 0

The number of values of k for which the system of equations: kx+(3k+2)y=4k (3k-1)x+(9k+1)y=4(k+1) has no solution, are

The number of values of k for which the system of equations: kx+(3k+2)y=4k (3k-1)x+(9k+1)y=4(k+1) has no solution, are

Find the correct answers about body coordination 1. Nervous system 2. Circulatory system 3. Endocrine system 4. Excretory system. (a) 1,2,3 correct (b) 1,2 correct (c) 2,4 correct (d) 1,3 correct

Try converting the following mixed numbers to fractions. Q. 8(1)/(3)

Consider the equation 2/x+5/y=1/3w h e r ex ,y in Ndot Find the number of solutions of the equation.