Questions and answers by

Fern Angel

Questions (4)

Without using the Calculator, solve the ff: (show solution)a. Cos 18° b. Tan 18° c. Cot 18° d. Sin 9° e. Cos 9° [Hint:
1. 1 answer
2. 704 views
Prove the following identities:1. (tan theta - sin theta)^2 + (1-cos theta)^2 = (1-sec theta) ^2 2. (1-2cos^2 theta) / sin theta
1. 1 answer
2. 927 views
Prove the following identities:1. (tan theta - sin theta)^2 + (1-cos theta)^2 = (1-sec theta) ^2 2. (1-2cos^2 theta) / sin theta
1. 1 answer
2. 751 views
Express in functions of theta:a. sin ( 810- theta) b. cot ( theta - 360) c cos (-180- theta)
1. 2 answers
2. 3,320 views