rechthoekige driehoek ABC
(met scherpe hoeken B en C) ?
|
Welke formule is correct in een rechthoekige driehoek ABC (met scherpe hoeken B en C) ?
|
A. sin A + cos A = 1 |
|---|---|
| B. sin B + cos B = 1 | |
| C. sin C + cos C = 1 | |
| D. sin B + cos C = sin2 B | |
| E. sin C + cos B = cos2 B |
[ 3,4-3976 - op net sinds 9.2.05-(E)-27.10.2023 ]
|
A,B,C are the measures of the three angels of a right triangle. (A is the right angle) Which formula is correct ? |
A. sin A + cos A = 1 |
|---|---|
| B. sin B + cos B = 1 | |
| C. sin C + cos C = 1 | |
| D. sin B + cos C = sin2 B | |
| E. sin C + cos B = cos2 B |
