Question

II. Answer any Five of the following:
5x 2 = 10
16. Find A B and AB for the following A = 2, 6, 10, 14) and B = { 2,5,14,1
17. If K = ( a,b,d,e,f}, L= bc,d,g) and M = a,b,c,d.h) find (KUL) (KUM)
18. Show that ( x +2) is a factor of x' 4x²-2x+20.
19. Expand ( 3a - 4b).
20. Factorise: x + x = 56
21. Find the GCD of 24x*y, 16xy?z.
III. Answer any THREE of the following:
3 x 5 = 15
22. Solve 2x - y =3, 3x + y = 7 by the method of elimination.
23. If the quotient obtained on dividing (8x*-2x++6x-7) by ( 2x + 1) is
( 4x +px -qx+3), then find p. and also the remainder.
24. If A = 1 -2,0,1,3,5), B = (-1,0,2,5,6) and C=1-1,2,5,6,7) then show that
A-(BUC) = (A-B) (A-C).
25. Verify A - (BAC)=(A-B) U (A-C) using Venn diagrams.
IV. Answer the following:
2 x 5 = 10
26. Draw the graph for x*+x-12 =0 by using quadratic equation.​

Answer 1

Answer:

Write the following symbolic statements in words. ... If A = { a , b, c, d, e}, B = { c, d, e, f }, C = {b, d}, D = { a , e} ... U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20};

Answer 2

Answer:

22.

2x-y=3 × 3

3x+y=7 × 2

6x-3y=9 ------(1)

6x+2y=14 ------(2)

By elimination method

0x-5y=-5

-5y= -5

y =-5/-5

y = 1

Putting the value of y in eq.(1)

6x-3y=9

6x-3(1)=9

6x-3=9

6x=9+3

6x=12

x=12/6

x=2