Grade 10Algebra
find the sum of the series (1.2)+(1.2+2.3)+(1.2+2.3+3.4)+.......upto12 terms.
find the sum of the series (1.2)+(1.2+2.3)+(1.2+2.3+3.4)+.......upto12 terms.
2 Answers
Vikas TU
Dear student
The question does not seems to be taking any standard form .
Can you upload th image,
We will help you .
Good Luck
Lakshmi
The answer is 3
Note: Many people multiply it and may guess it as -3 which is WRONG
Unless they have asked to simplify and solve, the answer is 3 ; not -3
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