Question

Simplify and write in exponential form with negative exponent: (i) 2 −1 ( 5 3 ) 4 + ( 3 5 ) −2 ÷ 17 9 (ii) (−7) 3 × ( 1 −7 ) −9 ÷ (−7) 10

Answer 1

Answer:

Take free points K lg l increased k Important obtained is required to find the rational number is greater than

Answer 2

Answer:

∵α and β are the zeroes of above polynomial.

∴ Sum of roots =

a

−b

⇒α+β=

1

−1

⇒α+β=−1⟶(1)

Product of roots =

a

c

⇒αβ=

1

1

⇒αβ=1⟶(2)

∴

α

1

+

β

1

=

αβ

β+α

From eq

n

(1)&(2), we have

⇒

α

1

+

β

1

=

1

−1

=−1