Write the value of `a_(30)-a_(10)` for the A.P. `4,\ 9,\ 14 ,\ 19 ,\ dot`

The value of a_(30)-a_(20) for the A.P. -3,-1,1,"…." is

Write the value of a_(25) -a_(15) for the AP 5, 9, 13, 17..................

What will be the value of a_(8) - a_(4) for the following A.P. 4,9,14,…………., 254

What is value of a_(16) for the A.P. -10, -12, -14, -16 ………….

Find a_(30)-a_(20) for the A.P. -9,\ -14 ,\ -19 ,\ -24 ,\ dot (ii) a ,\ a+d ,\ a+2d ,\ a+3d ,\ ddot

Find a_(30)-a_(20) for the A.P.-9,-14,-19,-24,a,a+d,a+2d,a+3d,dots

Find t_(n) ,for the following A.P: 4,9,14,19...

Which term of the A.P. 4, 9, 14, 19 ...... is 109 ?

Which term of the A.P.4,9,14,19,.....is 89 ?

If a_(1), a_(2), a_(3), ……. , a_(n) are in A.P. and a_(1) = 0 , then the value of (a_(3)/a_(2) + a_(4)/a_(3) + .... + a_(n)/a_(n - 1)) - a_(2)(1/a_(2) + 1/a_(3) + .... + 1/a_(n - 2)) is equal to