Simplifying Trig Identities Lesson

Multiple Choice

Which equation is the basis for the Pythagorean Identities?

• a² + b² = c²

• sin(x) = opp / hyp

• tan(x) = sin(x) / cos(x)

• sec(x) = 1 / cos(x)

Open Ended

How do you derive the rest of the Pythagorean Identities from sin²x + cos²x = 1?

Multiple Choice

Factor 3sin²x + 5sinx - 2

• (sinx + 2)(3sinx - 1)

• (3sinx + 2)(sinx - 1)

• (sinx - 2)(3sinx + 1)

• (3sinx - 2)(sinx +1)

Open Ended

Simplify tan𝜃cot𝜃−cos²𝜃