Question

If 3x-$\frac{1}{3x}$=5, then,
a)9x$x^{2}$+$\frac{1}{9x^{2} }$=?
b)81x$x^{4}$+$\frac{1}{81x^{4} }$=?

Answer 1

Answer:

a)25

b)625

Step-by-step explanation:

3square is 9

5square is 25

9 square is 81

25 square is 625