Math, asked by nirbhaysingh231222, 9 months ago

find the sum of an AP
1.2.3. -
93 terms

Answers

Answered by shashi151297

0

Step-by-step explanation:

a=1

d=1

S93=?

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

S93=93/2{2+92x1}

=93/2x94

=93x47

=4371

second method

regular natural numbers apply only

n(n+1)/2

93x94/2

93x47

4371

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