Question

please answer this question ​

Answer 1

Answer:

5✓21

Step-by-step explanation:

by reciprocal we get

1 by x = x - 5

x-1/x = 5

by squaring both sides

(x-1/x)square = x square + 1by x square - 2×x×1byx

5square = xsquare + 1by x square - 2

25+2 = x square + 1by x square = 27

( x - 1by x)square-(x + 1by x)square =4

it's a equation

5square-(x + 1by x)square=4

25-(x + 1by x)square=4

(x + 1by x)square = 21

x + 1by x = +-✓21

(x-1/x)(x+1/x) = x square - 1by x square

5x✓21 =x square - 1by x square