The relationship between conformal trigonometric function and complementary trigonometric function
The relationship between trigonometric functions with the same angle;
Square relation:
sin^2(α)+cos^2(α)= 1
tan^2(α)+ 1=sec^2(α)
cot^2(α)+ 1=csc^2(α)
Relationship between products:
sinα=tanα cosα
cosα=cotα sinα
tanα=sinα secα
cotα=cosα cscα
secα=tanα cscα
cscα=secα cotα
Reciprocal relationship:
tanα cotα= 1
sinα cscα= 1
cosα secα= 1
In the right triangle ABC,
The sine value of angle a is equal to the ratio of the opposite side to the hypotenuse of angle a,
Cosine is equal to the adjacent side of angle a than the hypotenuse.
The tangent is equal to the opposite side of the adjacent side,
Cotangent equals the comparison of adjacent edges.
The relationship between trigonometric functions of complementary angles;
sin(90 -α)=cosα,cos(90 -α)=sinα,
tan(90 -α)=cotα,cot(90 -α)=tanα。