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`

Six persons A,B,C,D E and F are sitting in a circle .B is between F and C ,A is between E and D,F is to the left of D.Who is between A and F?

If a, b, c, d, e are positive real numbers, such that a + b +c + d + e = 8 and a^2 + b^2 + c^2 + d^2 + e^2 = 16 , find the range of e.

Six friends A, B, C, D, E and F are sitting in a circle. C is to the left of D, F is between A and E, and E is between F and D. Who is to the left of F?

Six friends A, B, C, D, E and F are sitting in a circle. C is to the left of D, F is between A and E, and E is between F. and D. Who is to the left of F?

Six persons A, B, C, D, E and F are standing in a circle. B is between F and C. A is between E and D. F is to the left of D. Who is between B and D?

Iron rods a, b, c, d, e and f are making a design in a bridge as shown in Fig. 5.47, in which a ||b, c ||d, e || f. Find the marked angles between (i) b and c (ii) d and e (iii) d and f (iv) c and f

If A={:[(a,2,3),(b,c,4),(d,e,f)]:} is skew symmetric matrix, then find a,b,c,d,e,f.