सिद्ध करे
`P(A//A)=1`

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) .

Let A, B be any two events P(A)=P_(1), P(B)=P_(2) and P(A nn B)=P_(3) .Then which of the following are true P(bar(A uu B))=1-(P_(1)+P_(2)) P[A uu(bar(A)nn B)]=P_(1)+P_(2)-P_(3) P(bar(A)/bar(B))=(1-P_(1)-P_(2)+P_(3))/(1-P_(2)) P[bar(A)nn(A uu B)]=P_(2)-P_(3)