# Sin theta = -1

Solve for ? sin(3theta)=-1. Take the inverse sine of both sides of the equation to extract from inside the sine. The exact value of is . Divide each term by and simplify.

Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history The first shows how we can express sin θ in terms of cos θ; the second shows how we can express cos θ in terms of sin θ. Note: sin 2 θ-- "sine squared theta" -- means (sin θ) 2. Problem 3. A 3-4-5 triangle is right-angled.