Simplify `1/(8(1-sqrta))+1/(8(1+sqrta))+(2sqrta)/(8(1-a))`

Simplify: 1/8-7/8

Simplify: 7/8-1/3-1/4

simplify 5/8+1/8=?

Simplify 7+5 1/8-3 1/4

Simplify (7)/(8) +(1)/(16) -(1)/(12)

Simplify :(8)(1)/(4)-(2)(5)/(6)

If a_(1),a_(2),a_(3),"….",a_(n) are in AP, where a_(i)gt0 for all I, the value of (1)/(sqrta_(1)+sqrta_(2))+(1)/(sqrta_(2)+sqrta_(3))+"....."+(1)/(sqrta_(n-1)+sqrta_(n)) is

If a,b,c are in AP, show that 1/((sqrtb+sqrtc)),1/((sqrtc+sqrta)),1/((sqrta+sqrtb)) are in AP.

lim_(x-> a) (sqrtx +sqrta)/(x+a)