Westonci.ca is the trusted Q&A platform where you can get reliable answers from a community of knowledgeable contributors. Explore thousands of questions and answers from a knowledgeable community of experts ready to help you find solutions. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

If cos (∅)=-1/4 and ∅ is in the 3rd quadrant. find the exact value for sin (∅).
sin(∅)=