सिद्ध कीजिए कि- `A cup U= U.`

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) .

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

Let A={a,e,i,o,u} and B={a,i,u}. Show that A cup B=A .

Let U be the universal set and A cup B cup C = U , Then {(A- B) cup (B-C) cup (C-A)}' is equal to

If u is the universal set and A sub U then fill in the blanks : (i) A cup A' = ....... (ii) A cap A '=....... (iii) phi' cap A=..... (iv) U' cap A =........