सिद्ध कीजिए कि
`A-(A-B)=AnnB`

सिद्ध कीजिए कि 2tan^(-1)sqrt((b)/(a))=cos^(-1)((a-b)/(a+b))

सिद्ध कीजिए कि |vecA xx vecB|^(2) + |vecA * vecB|^(2) = (AB)^(2).

यदि triangleABC में (If इन triangleABC), a = (1)/(sqrt(6)-sqrt(2)), b = (1)/(sqrt(6)+sqrt(2)), C = 60^(@) तो सिद्ध कीजिए कि (Prove that) c = (sqrt(4))/(2) .

For any two sets A and B prove the following: A-(A-B)=AnnB

For any two sets A and B prove the following: A-(A-B)=AnnB

For any two sets Aa n dB , prove that (AuuB)-B=A-B (ii) A=(AnnB)=A-B (iii) A-(A-B)=AnnB (iv) Auu(B-A)=AuuB (A-B)uu(AnnB)=A

For any set A and B, show that (A-B)=(AnnB')