Question

if sin theta =x/y then cos theta =​

Answer 1

Answer:

sin theta/x = cos theta/y

sin theta/cos theta = x/y

tan theta = x/y

sin theta = x/root(x2+y2) and cos theta = y/root(x2+y2)

sin theta – cos theta = (x-y)/root(x2+y2)

Answer 2

Answer:

$\sqrt{( {y}^{2} - {x}^{2}) \ \div {y}^{2} }$

see answer in picture

Step-by-step explanation:

hope this helps you