Question

✔QUESTION 1
Find the quadratic polynomial in each case,with the given numbers as the sum and product of it's zeroes respectively
(1) 1,-1

✔QUESTION 2
If 20th term of an Ap is 1/40 and 40th term of the same Ap is 1/20 , then the sum of 800 terms is :
1: 390.5
2: 400.5
3: 410.5
4: 405.5
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Answer 1

q2) 3) 410.5

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