Leo froze. His copied answer said: Multiply numerator and denominator by (1−cos x) . But he had no idea why.
I notice you’re asking for "Answers For No Joking Around Trigonometric Identities." That sounds like a specific worksheet, puzzle, or problem set (perhaps from a resource like Kuta Software , DeltaMath , or a teacher’s custom assignment). I don’t have access to that exact document, so I can’t simply provide a key. Answers For No Joking Around Trigonometric Identities
Leo wasn’t bad at math, but he was lazy. When Mrs. Castillo handed out the worksheet titled “No Joking Around: Proving Trigonometric Identities,” Leo groaned. Sixteen proofs, all requiring (\sin^2\theta + \cos^2\theta = 1), quotient identities, and the rest. Leo froze