Find the 12th term of an A.P from end -2,-4,-6..........100
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Answer:
-24
Step-by-step explanation:
Given:
First term = a₁ = -2
Second term = a₂ = -4
So, common difference = d = a₂ - a₁ = -4 - (-2) = -4 + 2 =-2
So, 12th term = a₁ + (n-1)d {where n = nth term}
= -2 + (12 - 1)(-2) = -2 + (11)(-2) = -2 -22 = -24
∴ 12th term = -24
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