Trigonometry › Exact trigonometric values › Exact values
Double-angle sine from given sine and cosine
High school · ●○○○○ 10 pts
If is an angle in the first quadrant with and , find . Give your answer as a decimal.Trigonometry › Exact trigonometric values › Exact values
High school · ●○○○○ 10 pts
If is an angle in the first quadrant with and , find . Give your answer as a decimal.