Math, asked by sudeep347, 10 months ago

AP,GP plz help me I can't understand

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Answered by artistvikash1

0

Answer:

first term is 8

d=2

60th term is 8+59×2

=8+118

=126

sum of last 10terms is

=sum of 60 terms -sum of first 50 terms

=30×(16+59×2) -25(16+49×2)

=134×30-25×114

=4020-2850

=1370

ok

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gys

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