If 7 times the seventh term of an Arithmetic Progression (AP) is equal to 11 tim
If 7 times the seventh term of an Arithmetic Progression (AP) is equal to 11 times its eleventh term, then the 18 th term…
The first and last term of an A.P. are a and l respectively. If S is the sum of
The first and last term of an A.P. are a and l respectively. If S is the sum of all the terms of the…
The 7 th and 12 th term of an arithmetic progression are -15 and 5 respectively.
The 7 th and 12 th term of an arithmetic progression are -15 and 5 respectively. What is the 16 th term?
If S n denote the sum of the first n terms of an A.P. If S 2n = 3S n , then S 3n
If S n denote the sum of the first n terms of an A.P. If S 2n = 3S n , then S 3n…
For an A.P. if a 25 – a 20 = 45, then d equals to:
For an A.P. if a 25 – a 20 = 45, then d equals to:
Sum of n terms of the series $$sqrt 2 $$ $$ + $$ $$sqrt 8 $$ $$ + $$ $$sqrt {
Sum of n terms of the series $$sqrt 2 $$ $$ + $$ $$sqrt 8 $$ $$ + $$ $$sqrt {18} $$ $$ +…
For A.P. T 18 – T 8 = …….. ?
For A.P. T 18 – T 8 = …….. ?
If the sums of n terms of two arithmetic progressions are in the ration $$frac{
If the sums of n terms of two arithmetic progressions are in the ration $$frac{{3n + 5}}{{5n + 7}},$$ then their n th terms…
The 4 th and 7 th term of an arithmetic progression are 11 and -4 respectively.
The 4 th and 7 th term of an arithmetic progression are 11 and -4 respectively. What is the 15 th term?
How many terms are there in 20, 25, 30 . . . . . . 140?
How many terms are there in 20, 25, 30 . . . . . . 140?
The 3 rd and 8 th term of an arithmetic progression are -13 and 2 respectively.
The 3 rd and 8 th term of an arithmetic progression are -13 and 2 respectively. What is the 14 th term?
Find the first term of an AP whose 8 th and 12 th terms are respectively 39 and
Find the first term of an AP whose 8 th and 12 th terms are respectively 39 and 59.