PlayBoiiVictor PlayBoiiVictor

09-03-2021
Mathematics

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Find the arithmetic series a=2 d=5 n=20 find Sn

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sumamahalingshetti sumamahalingshetti

09-03-2021

Step-by-step explanation:

Sn=n/2{2a+(n-1)d}

=10(4+95)

=10(99)

=990

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