2010015304 | math4u.vsb.cz

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Project ID:

2010015304

Source Problem:

Accepted:

0

Clonable:

1

Easy:

1

Which of the following formulas applies to the given triangle

A B C

? (See the picture.)

c^{2} = a^{2} + b^{2} - 2 a b \cos γ

c^{2} = a^{2} + b^{2} + 2 a b \cos γ

c^{2} = a^{2} + b^{2} - 2 a b \cos α

c^{2} = a^{2} + b^{2} - 2 a b \sin β