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In an AP, if a=28, d=3, n=6 then \({a_n}\)is?
If a=20, d=15 then first four terms will be?
The first term and common difference for the AP 3, 1,1,3 are?
\({29^{th}}\)Term of the AP 10,7,4… is?
10th term of the AP 3,\(\dfrac{{ – 1}}{2}\), 2… is?
The missing term in AP _, 13, _3 are?
Substituting equation 1 from 2 we get
If an AP has a=1, \({t_n} = 20\)and\({S_n} = 399\), then value of n is?
Which term of the AP 92, 88, 84, 80, 76… is 0?
In an AP if d=4, n=6, \({a_n} = 4\)then a=?
The 10th term of an AP \( – 5,\dfrac{{ – 5}}{2},0,\dfrac{5}{2},….\)is?
The 18th term of an AP whose first two terms are 3 and 4 is?
Which term of an AP 21, 42, 63, 84, are 210?
If the common difference is 6 then the value of\({a_{17}} – {a_{12}}\)?
If 7 times the 7th term of an AP is equal to 11 times its 11th term, then its 18th term will be?
The sum of first 15 terms of the AP 10, 6, 2 … is?
The sum of first 5 multiples of 3 is?
The value of a, b, c such that the following numbers are in AP a, 7, b, 23, c
a, 7, 23, c are in AP
Find the 18th term of the AP whose 7th term is 24 less than the 11th term first term being 12?
The value of K so that\({k^2} + 4k + 8\), \(2{k^2} + 3k + 6\)and \(3{k^2} + 4k + 4\)are three consecutive terms of an AP is?
The angles of a triangle are in AP the greatest angle is twice the least. Find all the angles of a triangle?
If sum of the 3rd and the 8th terms of an AP is 7 and sum of the 7th and 14th term is 3. The value of 8th term is?
Substituting equation 1 from 2 we get,
How many numbers lie between 10 and 300 which divided by 4 leaves a remainder 3?
A=11, d=1511=4
The sum of \(( – 1) + ( – 2) + ( – 5) + …… + ( – 236)\)is?
The numbers 28, 22, x, y, 4 are in AP. The reciprocal values of x and y are?
The value of ‘n’ if the sum of the first ‘n’ terms of the AP 15, 23, 31,…. is 708
But n cannot be negative so, n=12
If the sum of p terms of an AP is q and the sum of q terms is p, then the sum of (p+q) terms will be.
Sum of p terms=q
Sum of q terms is p
Subtracting 2 from 1
Dividing by pq we get
If the sum of n terms of an AP is \(3{n^2} + n\)and its common difference is 6 then its first term is
The first and last term of an AP is 1 and 11. If the sum of the term is 36, then the number of terms will be?
If the sum of n terms of an AP is \(2{n^2} + 5n\)then its nth term is?
If the sum of first n even natural number is equal to k times the sum of first n odd natural numbers, then k?
Sum of n even natural number = n(n+1)
Sum of n odd natural number =
According to the question