It is given that

S

=

n

(

a

+

l

2

)

S=n(

2

a+l

)

Find the value of S when

n

=

20

n=20

a

=

5

a=−5

l

=

17

l=17

asked by guest
on Dec 29, 2024 at 12:31 am



Mathbot Says...

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