Question

9. If x2 + 4x – 1 = 0 and x is positive then find the value of a) x+1÷x b) x^2 +1÷x^2​

Answer 1

Step-by-step explanation:

lim

(1+x)

1/2

−1

2

x

−1

Using L Hospital rule

x→0

lim

2

1+x

1

−0

2

x

log2−0

=

2

1

1

1.log2

=2log2

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Answer 2

Step-by-step explanation:

9. If x2 + 4x – 1 = 0 and x is positive then find the value of a) x+1÷x b) x^2 +1÷x^2