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`        roots of the equation x2+px+q=0 are 1 and 2. Roots of the equation qx2-px+1=0 must be?(a)1/2 and 1(b)1/2 and -1(c)-1/2 and -1(d)-1/2 and 1`
9 months ago

Khimraj
2468 Points
```							roots of equation x2+px+q =0 are 1 and 2.sum of roots of equation = -p = 1+2 =3So p = -3product of roots of equation = q = 1*2  =2so q= 2Then equation qx2-px +1 =0 becomes 2x2 + 3x+1 =0 (2x+1)(x+1) = 0So roots are x = -1/2 and x= -1.Hope it clears. If you like answer then please approve it.
```
9 months ago
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## COUPON CODE: SELF10

### Course Features

• 731 Video Lectures
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### Course Features

• 101 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions