Arithematic progression

which sequence out of the given are in Arithmetic Progression ?

• 3,4,5,7,11.......

• 16,13,10,7,............

• 5,3,1,0,-1........

• 0,1,2,3,7........

A   { 1, 3, 5, 7,.....}
B   { 2, 5 ,6, 10, 39,...}
you can proceed to next term  if you know the rule....... which set has certain rule

• A
• B

The set which obeys a certain rule is call A SEQUENCE
A  { 2, 5, 8, 11,.........}
B {  2, 5 ,6, 10, 39,...}
which one is the sequence

• A
• B

   2, 5, 8, 11,.......find the common difference (d)

• 3
• -3

T1 = a
T2 = a + d
T3 = a + d + d = a + 2d 
what is T5

• T5= a + 5d
• T5 = a + 4d

T1 = a
T2 = a + d
T3 = a + d + d = a + 2d 
T5 = a + 4d
T6 = a + 5d
what is Tn ( the n^th  of an Arithmetic Progression )

• Tn = a + nd
• Tn = a + (n-1)d

If an AP...3, 5, 7.....103
How many terms are there

• 50
• 51

Choose the correct answer from the given four options:
The 10th term of the AP: 5, 8, 11, 14, ... is

• 32
• 35
• 38
• 25

Tags

CCSS.HSF.BF.A.2

Which term of the AP: 21, 42, 63, 84,... is 210?

• 9^th
• 10^th
• 11^th
• 12^th 

Tags

CCSS.HSF.BF.A.2

If the 2nd term of an AP is 13 and the 5th term is 25, the common difference is 

• 12
• 4
• 3
• 5

Tags

CCSS.HSF.BF.A.2