Find the number of terms of an ap if the last term is 43 first term is 7 and the common difference is6
Answers
Answered by
6
a(n) = a + (n-1)d
here
a = 7
a(n) = 43
d = 6
n= ??
put the values
43 = 7 +(n-1)*6
43-7= 6n -6
36+6 = 6n
n = 7 ans
here
a = 7
a(n) = 43
d = 6
n= ??
put the values
43 = 7 +(n-1)*6
43-7= 6n -6
36+6 = 6n
n = 7 ans
Answered by
2
If this is an arithmetic sequence. Then,
a= 7 , d= 6 , L (Tn) = 43
Tn = a+ (n-1) d
43 = 7 + (n-1) x 6
43 = 7 + 6n - 6
1 + 6n = 43
6n = 43 -1
6n = 42
n = 42/6
n = 7
No. Of terms of the sequence is 7.
Hope that helps! I love arithmetic and geometric sequences! If you practice them enough you'll master them and even have fun while answering them just like i did right now doing so!
Please rank my answer if it helped you
a= 7 , d= 6 , L (Tn) = 43
Tn = a+ (n-1) d
43 = 7 + (n-1) x 6
43 = 7 + 6n - 6
1 + 6n = 43
6n = 43 -1
6n = 42
n = 42/6
n = 7
No. Of terms of the sequence is 7.
Hope that helps! I love arithmetic and geometric sequences! If you practice them enough you'll master them and even have fun while answering them just like i did right now doing so!
Please rank my answer if it helped you
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