Verify the following : `3/4+(-2)/5=(-2 )/5+3/4`

Verify the following : (5/4+(-1)/2)+3/2=5/4+((-1)/2+(3)/2)

Verify the following : 3/4+5/8=5/8+3/4

Verify the following: (i) ((3)/(4)+(-2)/(5))+(-7)/(10)=(3)/(4)+((-2)/(5)+(-7)/(10)) (ii) ((-7)/(11)+(2)/(-5))+(-13)/(22)=(-7)/(11)+((2)/(-5)+(-13)/(22)) (iii) -1+((-2)/(3)+(-3)/(4))=(-1+(-2)/(3))+(-3)/(4)

Verify the following: (-1,2,1),(1,-2,5),(4,-7,8) and (2,-3,4) are vertices of a parallelogram.

Verify the following:- (ii) (-15)/(4)times((3)/(7)+(-12)/(5))=((-15)/(4)times(3)/(7))+((-15)/(4)times(-12)/(5)) .

Evaluate the following : 4/5+8/3+2/5+(-2)/5

Let A={1,2,4,5}B={2,3,5,6}C={4,5,6,7}* Verify the following identities: A nn(B-C)=(A nn B)-(A nn C)

Let A={1,2,4,5}B={2,3,5,6}C={4,5,6,7}* Verify the following identities: A nn(BC)=(A nn B)(A nn C)

If A=[[5,1],[6,7]], B=[[2,1],[3,4]],C=[[1,3],[-1,4]] , verify the following (3B)\'=3(B\')\'

Let A={1,2,4,5}B={2,3,5,6}C={4,5,6,7}* Verify the following identities: A uu(B nn C)=(A uu B)nn(A uu C)