- #1
physior
- 182
- 1
hello
we define sin/cos/tan as the ratio of sides of a right triangle, which we have proved (? not sure, or we assume by a theorem or something?) that are constant for a specific angle
this makes some sense
but what about sin/cos/tan for degrees like 0, 90, >90 ? what about negative degrees? what about degrees >360? (as the sin function goes to negative numbers and numbers above 360 degrees)
it clearly seems that sin/cos/tan is not just the ratio of a right angle sides, but something else
why they use that definition and they confuse us?
what is the real sin/cos/tan definition and what its real meaning?
thanks
we define sin/cos/tan as the ratio of sides of a right triangle, which we have proved (? not sure, or we assume by a theorem or something?) that are constant for a specific angle
this makes some sense
but what about sin/cos/tan for degrees like 0, 90, >90 ? what about negative degrees? what about degrees >360? (as the sin function goes to negative numbers and numbers above 360 degrees)
it clearly seems that sin/cos/tan is not just the ratio of a right angle sides, but something else
why they use that definition and they confuse us?
what is the real sin/cos/tan definition and what its real meaning?
thanks