Question

1 - cos/sin = sin/1 + cos​

Answer 1

Answer:

do cross multiply and is cos²+sin²=1

Answer 2

Answer:

LHS:

= 1 - cos $x$/ sin $x$ x 1 + cos $x$/ 1 + cos $x$

RHS:

= 1 - cos²$x$/ sin $x$ (1 + cos $x$)

= sin $x$/1 + cos $x$