Math Calculators, Lessons and Formulas

It is time to solve your math problem

« Trigonometric Formulas
Trigonometry: (lesson 2 of 3)

Trigonometric Equations

Very, Very Important formula:

Trigonometric equation

Basic trigonometric equations:

Example 1:

Trigonometric equation example

Solution: We know that the Trigonometric equation solution therefore

Trigonometric equation solution

Example 2:

Trigonometric equation example

Solution: We know that the Trigonometric equation solution therefore

Trigonometric equation solution

Example 3:

Trigonometric equation example

Solution : We know that the Trigonometric equation solution therefore

Trigonometric equation solution

Advanced trigonometric equations

Example 4:

Trigonometric equation example

Solution:

Step 1: To solve for x, you must first isolate the sine term.

Trigonometric equation solution

Step 2: We know that Trigonometric equation solution therefore

Trigonometric equation solution

Example 5:

Trigonometric equation example

Solution:

Step 1: To solve for x, you must first isolate the tangent term.

Trigonometric equation solution

Step 2: We know that and therefore

Trigonometric equation solution

Example 6:

Trigonometric equation example

Solution

Step 1: To solve for x, you must first isolate the cosine term.

Trigonometric equation solution

Step 2: We know that therefore