Question

how to find the roots in between (-2,-1)​

Answer 1

Step-by-step explanation:

Given (1−a

2

)x

2

+2ax−1=0

Usind sri dharacharya formula

x=

2(1−a

2

)

−2a±

4a

2

+4(1−a

2

)

x=

(1+a)(1−a)

−a±1

x=

a−1

1

or x=

a+1

1

If a>1 the roots will both be positive, but we require a>2 for both roots to be less than 1.

Therefore a>2