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The 8th term if an ap us half to its second term and elevwnth term exceeds one third of uts fourth term by 1 . Find the 15th term |
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Answer» =>2a+14d=a+d =>2(a+13d=0) =>2a+26d=0.........Eq1 a+10d=1/3(a+3d)+1 =>3a+30d=a+3d+3 =>2a+27d=3............Eq2 On SOLVING Eq1 and Eq2,we get d=3 and a=-39 15th term=a+14d =-39+14x3 =39+42=81 |
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