によって Omar Alonzo 2年前.
220
Six Trigonometric Functions
and Trigonometric Identities
Six Trigonometric Functions
and Trigonometric Identities
Csc
Inverse is 1/Sin
r/y
Cot
Inverse is 1/Tan
x/y
Sin
Inverse is 1/Csc
y/r
Tan
Inverse is 1/Cot
Odd
y/x
Pythagorean Identities
Cot^2 -1 = Csc^2
Tan^2 + 1 = Sec^2
Sin^2 + Cos^2 = 1
Sec
Inverse is 1/Cos
r/x
Cos
Inverse is 1/Sec
Even
x/r