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Hello sir I am prachi plz help me to solve this question

Hello sir I am prachi plz help me to solve this question 
 

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Grade:12th pass

1 Answers

Arun
25750 Points
6 years ago
Dear Prachi
 
Let roots are a, b, c, d
1/a + 1/b + 1/c + 1/d = (abc + bcd+ acd + abd) / abcd
As we know 
abc + bcd + acd+ abd = 4
and
abcd = – 10
Hence answer will be  =   – 4/10 =  – 2/5
 
TRegards
Arun

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