Question

sum of the terms of ap a,2a,3a,4a............10a.s10 is​

Answer 1

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Answer 2

Answer:

10a^2+9a

Step-by-step explanation:

Sum=n/2(2a+n-1)d

n=2

a=a( a is the first term of an AP)

d=a(d is the common difference)

=10/2(2a+9)a

=5×2a^2+9a

=10a^2+9a

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