Math, asked by fireshijin5, 4 months ago

Answer it please i need real answer​

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Answered by jujharsingh12344
0

Answer:

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Answered by gurdeepkpassi
0

a+2d = 8

a+6= 8

a= 2

Sn = n/2 (2a + (n-1) × d)

S = 5/2 (4 + 4× 3)

S = 5/2 (4+12)

S= 5/2 × 16

S = 5× 8

S = 40

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