What is obtained by subtracting any two consecutive terms in an arithmetic sequance ?
common difference , d
Progression with equal common difference are known as
Geometric progression
Find the sum of the arithmetic series : -14-8-2-...+142
1728
462 is the ____ th term of -2,6,14,...
59
What do you call the symbol for summation ?
Sigma
What is the formula to solve for the nth term of an arithmetic sequence
Tn=a+(n-1)d
What is formula to find nth term in GP ?
a(n)=ar^(n-1)
Find the sum of the arithmetic series described :
a=15, a_n=-12 , n=30
45
What is the nth term of the arithmetic sequence with a(1)=11 and d=15 ?
a(n)=15n-4
The list if numbers -10,-6,-2,2,... is
A) An AP with d=8
B) Not an AP
C) An AP with d=4
D) An AP with d=-4
C) An AP with d=4
Which of the following is an example of an arithmetic sequence ?
A. 1,3,9,27,...
B.1,14,20,30,...
C.1,-1,1,-1,...
D.2,7,12,17,...
D.2,7,12,17,...
Given that a=10 , r=3 , n=4, work out the sum of this geometric series
400
The common difference of the A.P can be
A) Only zero
B) Positive, Negative or Zero
C) Only Positive
D) Only Negative
B) Positive, Negative or Zero
If the angle of a right angle triangle are in A.P, then the angles of the triangle will be
A)45,45,90
B)30,60,90
C)40,50,90
D)20,70,90
B)30,60,90
Find the missing term 2,_,26
14
In a sequence
a,3,2,1
What is the first term ?
a=4
Which of the following is not a geometric sequence ?
A)5,-5,5,-5,5,..
B)6,2,2/3,...
C)10,5,2.5,1.25,...
D)2,5,8,11,14,...
D)2,5,8,11,14,...
Is 200 any term of the AP=3,7,11,15,...
NO
Find the missing term for this geometric progression 5,_,8
6.3245
How many multiples of 4 lie between 10 and 250 ?
60
Find the 20th term in the sequence described :
a=16 , d=-2/3
T_20=10/3 @ 3.33
If k,6 and 10 are consecutive terms of an geometric sequence, find the value of k
3.6
What kind of progression the triangle of balls does present ?
An arithmetic progression
The sum of a geometric progression is shown below. Solve for the variable a
a=S(1-r)/(1-r^n)
BONUSS !!!
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IT'S PINKKKKK