Time to Run Your BRAIN. REASONING QUESTION. Irreverent Answer = Report Appropriate Answer = BRAINLIEST
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How many terms are in the sequence 1, 5 ,7 ,11,.....77?
- we need to find the number of terms in the given AP.
- Given AP = 1, 5, 7 , 11 ......77
- Last term = 77
- First term = 1
Common difference = a2 - a1
- a2 = 5
- a1 = 1
Common difference = 5 - 1
Common difference = 4
- ▶ we know that,
where,
- a = First term
- n = number of terms
- d = common difference
- an = last term
Hence,
- There are 20 terms in the given sequence.
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