Question

plzzz solve it any one answer is -2

Answer 1

Hi ,

It is given that ,

a + 1/a + 2 = 0

a² + 1 + 2a = 0

a² + 2a + 1 = 0

a² + 2 × a × 1 + 1² = 0

( a + 1 )² = 0

a + 1 = 0

a = -1

Now ,

( a^17 - 1/a^100 )

= [ ( - 1 )^17 - 1/( -1 )^100 ]

= - 1 - 1

= -2

I hope this helps you.

: )