If `A={a, b, c} B={a, b, c, d, e} `then `A nn B=............ qquad` (A B neither A nor B)

Let A={a, b, d, e}=B={c, d, f, m}, C={a, l, m, o} . Then C nn(Auu B) will be given by

Let A = (a,b,c),B= (b,d,e) and C = (e,f,g) , verify that : A nn B = B nn A

Let A = { a,b,c,d} = B ={b,c,e) and C = (d,e,f) Verify that : A uu B = B uuA

Let A = { a,b,c,d} = B ={b,c,e) and C = (d,e,f) Verify that : (A uu B ) uu C = A uu (B uu C )

Let A = (a,b,c),B= (b,d,e) and C = (e,f,g) , verify that : ( A nn B ) nn C = A nn (B nn C )

For all sets A, B and C, if A sub B , then A nn C sub B nn C .

Fill in the blanks in the following so that each of the following statements is true. (i) Sides opposite to equal angles of a triangle are ....... (ii) Angle opposite to equal sides of a triangle are ....... (iii) In an equilateral triangle all angles are ....... (iv) In a A B C if /_A=/_C , then A B=\ ..... (v) If altitudes C E\ a n d\ B F of a triangle A B C are equal, then A B= ........ (vi) In an isosceles triangle A B C with A B=A C , if B D\ a n d\ C E are its altitudes, then B D is .......... C E . (vii) In right triangles A B C\ a n d\ D E F , if hypotenuse A B=E F and side A C=D E , then A B C\ ~= ....

Let A , B and C be the sets such that A uu B=A uu C and A nn B = A nn C . show that B=C

Let A , B and C be the sets such that A uu B=A uu C and A nn B = A nn C . show that B=C

If A, B and C be sets. Then, show that A nn (B uu C) = (A nn B) uu (A nn C) .