Question

choose the correct answer​

Answer 1

Answer:

1) Option - (a) - a + 10d

2) Option - (d) - (4,2)

3) Option - (a) - n(n + 1) /2

Answer 2

Step-by-step explanation:

hey mate here your answer

1. a+9d
2. 4,2
3. option d

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