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Find the 17th term from the …

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Find the 17th term from the end of the AP.1,6,11,16,......211,216

Posted by Brajendra Brajendra 8 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Ashish Kumar Mishra 5 years, 2 months ago

a = 216 d=-5 n=17 a17= a + 16d = 216 +16 (-5) =216-80 136

2Thank You

Hans Raj 8 years, 2 months ago

216 , 211, ............... 16,11,6,1

a=216

d= - 5 (211 - 216)

n = 17

a17=a+16(-5)

= 216 - 80

= 136

1Thank You

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