Question

If a and B be the root of the equation x2-1=0 then show that
a +B= 1 / a + 1 / B​

Answer 1

Step-by-step explanation:

${x}^{2} - 1 = 0 \\ \\ therefore \: \: \alpha + \beta = 0 \\ \\ \frac{1}{ \alpha } + \frac{1}{ \beta } = \frac{ \alpha + \beta }{ \alpha \beta } = \frac{0}{ - 1} = 0 \\ \\ \alpha \beta = - 1 \\ \\ \\ hence \: \: \: \: \alpha + \beta =0= \frac{1}{ \alpha } + \frac{1}{ \beta }$

Answer 2

Answer:

hii msine nidhi lsnjewar pr req dala hai

Step-by-step explanation: