in an AP d=-4 and 7th term = 4 find the last term
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d = -4
a7 = 4
a + 6d = 4
a + 6( -4) = 4
a = 4 + 24
a=28
Now, if the last term is 'n' then=>
Last Term = aň = a + (n-1)d
Last Term = 28 + (n-1)(-4)
Last Term = 28 - 4n + 4
Last Term = 32 - 4n......Ans.
Please mark it as brainliest if it was helpful.
a7 = 4
a + 6d = 4
a + 6( -4) = 4
a = 4 + 24
a=28
Now, if the last term is 'n' then=>
Last Term = aň = a + (n-1)d
Last Term = 28 + (n-1)(-4)
Last Term = 28 - 4n + 4
Last Term = 32 - 4n......Ans.
Please mark it as brainliest if it was helpful.
SidVK:
I hope it helped you.
Sorry bro, I wrote a wrong formula, I was distracted. I apologize. Sorry.
But now it's all okay.
which formula was wrong
formula of last term
The formula of 'n' th term...it was 'a' not '2a'....Bit now I have corrected that. You can now check it.
ok
Sorry for my mistake. And tha kyon for selecting it as brainliest
Thankyou*
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last term = a+(n-1)d
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