sum of three numbers in an AP is 135. if it's 11th term 55 find its 16th term
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Answer:
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Step-by-step explanation:
ANSWER:
(1) 2, 4, 6, 8,....
The given sequence is an A.P.
Common difference = Second term − First term
= 4 − 2
= 2
(2) 2, 5252, 3, 7373 ,....
The given sequence is not an A.P.
(3) –10, –6, –2, 2...
The given sequence is an A.P.
Common difference = Second term − First term
= (−6) − (−10)
= 4
(4) 0.3, 0.33, 0.333,...
The given sequence is not an A.P.
(5) 0, –4, –8, –12,...
The given sequence is an A.P.
Common difference = Second term − First term
= (−4) − (0)
= −4
(6) −15,−15,−15,...-15,-15,-15,...
The given sequence is an A.P.
Common difference = Second term − First term
= (−1515) − (−1515)
= 0
(7) 3, 3+2–√, 3+22–√, 3+32–√3+2, 3+22, 3+32
The given sequence is an A.P.
Common difference = Second term − First term
= 3+2–√−33+2-3
= 2–√2
(8) 127, 132, 137,...
The given sequence is an A.P.
Common difference = Second term − First term
= (132) − (127)
= 5
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