Trigonometric identities are trigonometric equations that are always true.
"Trigonometry" comes from the Greek words trigonon and metron, and roughly translates to "the measurement of angles".
csc(x) = 1/sin(x) = +/- 1/sqrt(1-cos^2(x))
It is a number - in trigonometry or elsewhere.
Trigonometry is used effectively in electronics.
There is no single law in trigonometry so the question makes no sense.
An identity is like an equation which is true for all values of the variable.
Trigonometry, Typing trigonometry, theology, term papers
I suggest that it is (sin A)^2 + (cos A)^2 = 1
"Trigonometry" comes from the Greek words trigonon and metron, and roughly translates to "the measurement of angles".
triangle tangent trigonometry
Identity thieft
Personal identity
Trigonometry and tessellations both start with a t.
social identity
Social identity
plane trigonometry spherical trigonometry
The main kinds are plane trigonometry and solid trigonometry. The latter will include trigonometry in hyper-spaces.