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

If a, b, c, l,m are in A.P, then the value of a-4b + 6c -4l +m is.

If a,b,c and the d are in H.P then find the vlaue of (a^(-2)-d^(-2))/(b^(-2)-c^(-2))

If a,b,c are in H.P , b,c,d are in G.P and c,d,e are in A.P. , then the value of e is

In triangle A B C ,D is on A C such that A D=B C=D C ,/_D B C=2x ,a n d/_B A D=3x , all angles are in degrees, then find the value of xdot

If a,b,c are pth , qth and rth terms of an A.P., find the value of |(a,b,c),(p,q,r),(1,1,1)|

If x , y , z are in A.P. , then the value of the determinant are in A.P. , then the value of the determinant |a+2a+3a+2x a+3a+4a+2y a+4a+5a+2z| is a. 1 b. 0 c. 2a d. a

If a ,b ,c ,d ,e ,f are A.M.s between 2 and 12, then find the sum a+b+c+d+e+fdot

If a,b,c are in A.P. then (a-b)/(b-c) is equal to ………….

If a/(b + c), b/(c + a), c/(a + b) are in A.P., then

Let a , b , c , d be positive integers such that (log)_a b=3/2a n d(log)_c d=5/4dot If (a-c)=9, then find the value of (b-d)dot