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Trigonometry Examples
,
Step 1
Substitute for .
Step 2
Step 2.1
Move all terms containing to the left side of the equation.
Step 2.1.1
Subtract from both sides of the equation.
Step 2.1.2
Combine the opposite terms in .
Step 2.1.2.1
Subtract from .
Step 2.1.2.2
Add and .
Step 2.2
Since , the equation will always be true.
Always true
Always true