Exploring Equivalent Trigonometric Functions

Simplify the following trigonometric functions: f(x) = cos (a + π)

• -cos(a)
• tan(a)
• sin(a)
• cos(a + π)

Simplify the following trigonometric functions: f(x) = sin ( − a)

• sin(a)
• cos(a)
• tan(a)
• -sin(a)

Simplify the following trigonometric functions: f(x) = tan (a - 2π)

• sin(a)
• cos(a)
• tan(a)
• cot(a)

Simplify the following trigonometric functions: f(x) = cos (2π – α)

• cos(α)
• sin(α)
• -cos(α)
• tan(α)

Simplify the following trigonometric functions: f(x)= tan (-a)

• -tan(a)
• tan(a)
• -sin(a)
• cos(a)

Simplify the following trigonometric functions: f(x) = csc (-α- π)

• sec(α)

• csc(-α )

• csc(α )

• -csc(α )

Simplify the following trigonometric functions: f(x)= sec (π - α)

• tan(α)
• -sec(α)
• csc(α)
• cot(α)

Simplify the following trigonometric functions: f(x) =cot (a − π)

• tan(a )

• cot(a )

• -cot(a )

• sec(a - π)

Simplify the following trigonometric functions: f(x)= sec (π - α)

• tan(α)
• -sec(α)
• cos(α)
• csc(α)