जॉइन Examsbookउत्तर : 1. "3x2+5x+2=0"
Find the quadratic equations whose roots are the reciprocals of the roots of 2x2+5x+3?5
प्र: Find the quadratic equations whose roots are the reciprocals of the roots of 2x2+5x+3?
- 13x2+5x+2=0true
- 25x2+3x+2=0false
- 33x2-5x-2=0false
- 4Nonefalse
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उत्तर : 1. "3x2+5x+2=0"
व्याख्या :
Answer: A) A Explanation: The quadratic equation whose roots are reciprocal of 2x2+5x+3=0 can be obtained by replacing x by 1/x. Hence, 2(1/x)(1/x)+ 5(1/x) + 3 = 0 => 3x2+5x+2=0