Question

If the roots of px2+qx+2=0are reciprocals of each other, then

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Answer 1

Answer:

p=2

Step-by-step explanation:

If the roots are reciprocal of each other.

Then product of roots will be 1.

Product of roots =   p/2  =1

∴p=2

Answer 2

Answer:

p=2

Step-by-step explanation:

$\alpha \times \beta = c \div a$

Since

$\alpha = 1 \div \beta \\ \alpha \times \beta = 1$

hence,

$1 = 2 \div p$

and

$p = 2$