- #1
supernova1203
- 210
- 0
Tan theta=sin theta/cos theta
What does that identity mean? What does it say about the triangle?
And what on Earth is an identity?
I understand everything taught in the course so far, trig ratios, reciprocal trig ratios, special angles etc etc...but i have no idea what identities mean, some of them i recognize because they are reciprocal trig functions like
sin theta=1/cosecant theta -->which means that sin theta the angle is reciprocal to its cosecant... but Tan theta=Sin theta/cos theta... what does that even mean?or what about cotangent theta = cos theta/sin theta
Im lost mostly in trig identities @_@
and please no dictionary definitions, pretend your trying to explain these concepts to your 80 year old grandma @_@
from what i can gather an identity is basically left side equals right side?
for some reason reciprocal trig identities are easier for me to comprehend...because i know what a reciprocal is
omg i just read a page where it shows the sides as being sin theta and cos theta...i thought theta was for angles then why did they mark the sides of the triangle like this?
What does that identity mean? What does it say about the triangle?
And what on Earth is an identity?
I understand everything taught in the course so far, trig ratios, reciprocal trig ratios, special angles etc etc...but i have no idea what identities mean, some of them i recognize because they are reciprocal trig functions like
sin theta=1/cosecant theta -->which means that sin theta the angle is reciprocal to its cosecant... but Tan theta=Sin theta/cos theta... what does that even mean?or what about cotangent theta = cos theta/sin theta
Im lost mostly in trig identities @_@
and please no dictionary definitions, pretend your trying to explain these concepts to your 80 year old grandma @_@
from what i can gather an identity is basically left side equals right side?
for some reason reciprocal trig identities are easier for me to comprehend...because i know what a reciprocal is
omg i just read a page where it shows the sides as being sin theta and cos theta...i thought theta was for angles then why did they mark the sides of the triangle like this?
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