Question

2.
dy
وه(2)
-
$(1 - {x)}^{2} dydx$
​

Answer 1

Answer:

Synthetic fibres are man-made fibres that derived from chemical resources (Achwal 1984). ... Viscose fibre is obtained from the cellulose; versatility allows imitating materials such as cotton or silk. Polyester is a synthetic material, strong and easy to maintain.