the 6th term of an A.P. is 16 and the 14th term is 32 determine the 36 term
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9
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Unknown135:
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oues: If the 3rd and 9th term of an A.P. is 4 and (-8) . find which term is zero
Answered by
11
T6 =16 ( given )
a+(n-1)d=16
a+5d=16...................(1)
T14=32
a+13d=32..................(2)
from eq(1) and (2)
a+5d=16
a+13d=32
-
___________
-8d=-16
therefore, d=2
from eq(1),we get
a=6
Now,
T36 =a+(n-1)d
=6+35×2
=6+70
=76 Ans______
a+(n-1)d=16
a+5d=16...................(1)
T14=32
a+13d=32..................(2)
from eq(1) and (2)
a+5d=16
a+13d=32
-
___________
-8d=-16
therefore, d=2
from eq(1),we get
a=6
Now,
T36 =a+(n-1)d
=6+35×2
=6+70
=76 Ans______
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