If `A, A_1, A_2 , A_3` are areas of excircles and incircle of a triangle, then `1/sqrtA_1+1/sqrtA_2+1/sqrtA_3=`

If A_1 , A_2 , A_3 are areas of excircles, A is the area of incircle of a triangle then (1 ) /( sqrt(A_1)) + (1)/( sqrt(A_2)) + ( 1)/( sqrt(A_3))=

If A,A_1,A_2 and A_3 are the areas of the inscribed and escribed circles of a triangle, prove that 1/sqrtA=1/sqrt(A_1)+1/sqrt(A_2)+1/sqrt(A_3)

If A,A_1,A_2 and A_3 are the areas of the inscribed and escribed circles of a triangle, prove that 1/sqrtA=1/sqrt(A_1)+1/sqrt(A_2)+1/sqrt(A_3)

If A_1 , A_2 , A_3 are mutually exclusive and exhaustive, then P(A_1) + P(A_2) + P(A_3) equal______

If A_1,A_2, A_3 , are equally likely, exhaustive and mutually exclusive then P(A_1) equals

If a_1,a_2,a_3,.......a_n are in AP where a_1 gt 0foralli then the value of 1/(sqrta_1+sqrta_2)+1/(sqrta_2+sqrta_3)+....1/(sqrta_(n-1)+sqrta_n=

If A_1 , A_2 , A_3 are mutually exclusive, mutually independent and exhaustive, then the probability that A_1 , A_2 , A_3 occur simultaneously is