Wᴇ ᴋɴᴏᴡ ᴛʜᴀᴛ,

↝ nᵗʰ term of an arithmetic sequence is,

Wʜᴇʀᴇ,

aₙ is the nᵗʰ term.

a is the first term of the sequence.

n is the no. of terms.

d is the common difference.

Tʜᴜs,

Given that,

Also,

On Subtracting equation (2) from equation (1), we get

On substituting d = - 2, in equation (1), we get

Hence,

First term of an AP, a = 8

Common Difference of an AP, d = - 2

Additional Information :-

↝ Sum of n  terms of an arithmetic sequence is,

Wʜᴇʀᴇ,

• Sₙ is the sum of n terms of AP.

• a is the first term of the sequence.

• n is the no. of terms.

• d is the common difference.

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nth term of an AP is ,

where,

a=first term

d=common difference

So,

Substract equation (1) from (2),

From equation (1),

So,

Therefore, the AP is,

8,6,4,2,0,...

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