Question

answer the question ​

Answer 1

Answer:

5559

56

48

255514

555

5551

Step-by-step explanation:

please mark a brainliest

Answer 2

Answer:

a) 1+√21/2

Step-by-step explanation:

Let √(5+√(5+√(5+....)))=x

Then √(5+x)=x

Squaring, 5+x=x²

Shifting the terms, x²-x-5=0

Using quadratic formula, x=(1±√21)/2

Now, square root of anything is always positive or zero, so x≥0.

But, 1-√21<0, so x≠(1-√21)/2

Hence, x=(1+√21)/2.