Categories: All - graphs - identities - functions - angles

by Phuc Pham 1 year ago

148

Trigonometric

Trigonometric functions encompass a vast array of topics, including sine, cosine, and tangent functions and their graphs. These functions are fundamental to understanding oscillatory behavior and periodic phenomena in mathematics and science.

Trigonometric

Trigonometric

Trigonometric Equations and Trigonometric Identities

- Quotient Identities tan pi= sin pi/cos pi cot pi= cos pi/sin pi - Reciprocal Identities csc pi=1/sin pi sec pi=1/cos pi cot pi=1/tan pi - Pythagorean Identities sin2pi+cos2pi=1 tan2pi+1=sec2pi cot2pi+1=csc2pi -Even-Odd Identities sin(-pi)= - sin pi cos(-pi)=cos pi tan(-pi)=-tan pi csc(-pi)= -csc pi sec(-pi)=sec pi cot(-pi)=-cot pi

Graphs of the trigonometric functions ,the Inverse Sine, Cosine, and Tangent Functions.

Graphs of sine and cosine funtion : y=f(x)=sin x y=f(x)=cos x y=f(x)=tan x y=f(x)=csc x y=f(x)=secx y=f(x)=cotx
Tangent Functions y=tan-1 x and only if x=tan y Where - infinity< x< infinity and -pi/2
Cosine Function y=cos-1 x if and only if x= cos y where -1< x < 1 and 0 < y < pi
Inverse sine function y=sin-1 x if and only if x=sin y Where -1

Sine Law

Sin A/a=Sin B/b=Sin C/c SinA/a=SinB/b ; SinA/a=SinC/c ; SinB/b=Sinc/c A+B+C=180o

Properties of the trigonometric function

Determine the domain and rage
Domain Range Sin ARN [-1,1), -1< Sin pi<1 Cos ARN [-1,1] -1
sin=y scs=1/y cos = x sec=1/x tan=y/x cot=x/y

Angles and Trigonometric formulas

sin(900 -
The Unit Circle
https://matterofmath.com/trigonometry/unit-circle/
sin=opposite side /hypotenuse cos =adjacent side /hypotenuse tan =opposite side/adjacent side csc =hypotenuse/opposite side sec =hypotenuse/adjacent side cot=adjacent side/opposite side

Cosine Law

a2=b2+c2-2bc cos A b2=a2+c2-2ac Cos B c2=a2+b2-2ab Cos C