If `60^a`=3 and `60^b=5` then `12^((1-a-b)/(2(1-b)))` is equal to

Let a,bepsilonR^+ for which 60^a=3 and 60^b=5 then 12^((1-a-b)/(2(1-b))) is equal to

Let a,b varepsilon R^(+) for which 60^(a)=3 and 60^(b)=5 then 12^((1-a-b)/(2(1-b))) is equal to

In a DeltaABC,angleC=60^(@) , then (1)/(a+b)+(1)/(b+c) is equal to

If a ^(2) + b ^(2) = 169, ab = 60 , then (a ^(2) - b ^(2)) is equal to :

If ( a + b) : ( b + c ) : ( c + a) = 5 : 12 : 11 and a + b + c =28 , then (1)/( a) : (1)/( b) : ( 1)/( c ) is equal to:

If A={1,2,3,4,5,6},B={1,2}, then (A)/(((A)/(B))) is equal to

In a triangle ABC,/_A=60^(@) and b:c=(sqrt(3)+1):2 then (/_B-/_C) has the value equal to

If A = 60 ^(@) " then " ( 1)/(a+b) + (1) /( a+ c) =

If a ,b , in R such that a+b=1a n d(1-2a b)(a ^3+b^3)=12 . The value of (a^2+b^2) is equal to____.