4 ms·
You don't need to prove anything to define sin.
by teo_zero 4y ago
You don't need to prove anything to define sin.
- option 4y agothe definition of function in mathematics requires that same input always gives same output for all valid inputs. So yeah, to define sin as a function one absolute must prove that it only depends on angle and not triangle size. This proof is done via similar triangle properties (same angles => same proptions of sides) btw.