If 21,a,b,-3 are in AP.,find the value of a+b.

If 18,a,b,-3 are in AP,then a+b=

If 18, a, (b-3) are in AP, then find the value of (2a-b).

If a,b,c,d, e are in A.P.,the find the value of a-4b+6c-4d+e

If 2, a, 16/3 forms an AP, find the value of a.

A triangle ABC is such that sin(2A+B)=(1)/(2) and If A,B and C are in A.P.,then find the value of A and C

If a,b,c are in AP,then the value of det[[1,2,a2,3,b3,4,c]]

If a,b,c are in A.P then the value of det[[1,2,a2,3,b3,4,c]]

If a/b=3/4 then find the value of 7a-4b:3a+b .

If a = 2 and b = 3 , find the value of a+b

If (2a+b)/(a+4b)=3, then find the value of (a+b)/(a+2b)