Find an answer to your question ✅ “Prove cos (x - n) = - cOS X. cos (x - 7) = cos x sin n - sin x cos n = - cos X cos (x - n) = cos x cos n - sin x sin n = - cos X cos (x - n ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Home » Mathematics » Prove cos (x - n) = - cOS X. cos (x - 7) = cos x sin n - sin x cos n = - cos X cos (x - n) = cos x cos n - sin x sin n = - cos X cos (x - n = cos x sinn + sin x cos n = - cos X cos (x - n) = cos x cos n + sin x sin n = - cos x