find the fourth term from the end of AP - 11,-8,-5,.......49
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the fourth term of AP is -2
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reverse the AP
49.........-5,-8,-11
a=49
l=-11
d=-3
a4=a+(n-1)d
a4=49+(4-1)-3
a4=49+3×-3
a4=49-9
a4=40
fourth term from end of AP is 40
49.........-5,-8,-11
a=49
l=-11
d=-3
a4=a+(n-1)d
a4=49+(4-1)-3
a4=49+3×-3
a4=49-9
a4=40
fourth term from end of AP is 40
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