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Find the 11^(t h)from the last term (tow...

Find the `11^(t h)`from the last term (towards the first term) of the AP : `10 , 7,4........ -62.`

Text Solution

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10,7,4...,-62 (AP)
`a_1`=10
`a_2`=7
d=`a_2-a_1`
=7-10
=-3
L=-62
`a_n`=a+(n-1)(d)
...
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