Task 19 of 20 · Math · High school . Class 2
Sine of cosine in a triangle
Task
The α angle is sharp and cosα=12/13. Calculate sina and tgα.
Your answer
Write your answer, check the solution, then rate it against the criteria.
Task 19 of 20 · Math · High school . Class 2
Task
The α angle is sharp and cosα=12/13. Calculate sina and tgα.
Your answer
Write your answer, check the solution, then rate it against the criteria.