cosine and sine Flashcards
1
Q
cosine find angle
A
Cos A= B2 + C2 - A2 divided by 2bc
2
Q
cosine length
A
A2 = B2 + C2 - 2bc Cos A
3
Q
sine length
A
a divided by sin a
4
Q
sine angles
A
sin a divided by a