Question

A,b,c be in gp and p,q be respectively am between a,b and b,c then


(a) 2/b=1/p+1/q


(b) 2/b=1/p-1/q


(c) 2=a/p-c/q


(d) none of the above

Answer 1

(a) 2/b=1/p+1/q 


(b) 2/b=1/p-1/q 


(c) 2=a/p-c/q 


(d) none of the above