If the vectors `ahat i+hat j+hat k`,`hat i+bhat j+hat k` and `hat i+hat j+chat k(a!=b!=c!=1)` are coplanar,then the value of `(1)/(1-a)+(1)/(1-b)+(1)/(1-c)`.

If the vectors a hat(i)+hat(j)+hat(k), hat(i)+bhat(j)+hat(k) and hat(i)+hat(j)+chat(k)(a, b, c, !=1) are coplanar, then the value of (1)/(1-a)+(1)/(1-b)+(1)/(1-c) is equal to

If the vectors a hat(i) + hat(j) + hat(k), hat(i) + b hat(j) + hat(k) and hat(i) + hat(j) + c hat(k) (a,b ne 1) are coplanar then the value of (1)/(1-a) + (1)/(1-b) + (1)/(1-c) is equal to

If the vectors hat(i)-2hat(j)+hat(k),ahat(i)+5hat(j)-3hat(k)and5hat(i)-9hat(j)+4hat(k) are coplanar, then the value of a is

If the vectors ahat(i)+hat(j)+hat(k), hat(i)+bhat(j)+hat(k), hat(i)+hat(j)+chat(k), (anebnec) are coplanar, then (1)/(1-a)+(1)/(1-b)+(1)/(1-c)=

If the vectors 4 hat i+11 hat j+m hat k ,\ 7 hat i+2 hat j+6 hat k\ a n d\ hat i+5 hat j+4 hat k are coplanar then m= 38 b. "\ "10"\ " c. -1 d. -10

If ahat i+hat j+hat khat i+bhat j+hat khat i+hat j+chat k are coplaner then (1)/(1-a)+(1)/(1-b)+(1)/(1-c)=

The vectors 2hat i+3hat j-4hat k and ahat i+bhat j+chat k are perpendicular,

If the vectors 2a hat i+b hat j+c hat k ,b hat i+c hat j+2a hat ka n dc hat i+2a hat j+b hat k are coplanar vectors and a ,b!=c in R , then straight lines a x+b y+c=0 always pass through: (1,2) b. (2-1) c. (2,1) d. (1,-2)

If the vectors ahat(i)+hat(j)+hat(k), hat(i)+bhat(j)+hat(k), hat(i)+hat(j)+chat(k) , where a, b, c are coplanar, then a+b+c-abc=