Do this :`(-10)/11+7/11`

Find any 10 rational numbers between (-3)/11 and 8/11 .

If the coefficient of x^7 in (ax^2+(1)/(bx))^11 equals the coefficient of x^-7 in (ax-(1)/(bx^2))^11 , then a and b satisfy the relation

If the angles (2a-10)^@ and (a-11)^@ are supplementary what is the value of a?

Find the 10^(th) term of the A.P: -11,-9,-7,….

lim_(n to infty) ((1)/(3.7)+(1)/(7.11) +(1)/(11.15)+. . . +(n" terms ")) =

Show that the points (5,-1,1),(7,-4,7),(1,-6,10) and (-1,-3,4) are the vertices of a rhombus.