x_1, x_2, x_3, ________ are in A.P. If x_1+x_7+x_{10}=-6 and x_3+x | Filo

Class 11

Math

Algebra

Sequences and series

538
150

, ________ are in A.P. If and , then __________.

Solution: Let the first term be and common difference be

Solving eqn (1) and (2), we get and

Now,
So, option (A)
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150

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