`0.overline(68) + 0. overline(73) ` = ?

0.overline(142857 ) + 0.overline(285714 ) is equal to

Express each of the following as a rational number in simplest form. (a) 0.overline(6) (ii) 1.overline(8) (iii) 0.1overline6

The value of overline(23) + 0. overline(22) is

Express 2.overline36 + 0.overline23 as a fraction in simplest form.

For three vectors overline(p),overline(q) and overline ( r) , if overline( r) =3 overline(p)+4overline(q) and 2 overline( r) = overline(p) - 3overline(q) then

If overline(a), overline(b) and overline(c) are three non-coplanar vectors, then [[overline(a)+overline(b)+overline(c), overline(a)-overline(c), overline(a)-overline(b)]]=

If overline(a), overline(b) and overline(c) are three non-coplanar vectors, then (overline(a)-2overline(b)-overline(c))*((overline(a)+overline(b)-overline(c))times(overline(a)-overline(b)+overline(c)))=