Question

The Law of Cosines states that a^2 = b^2 - c^2 + 2bc cos A.
True or false

Answer 1

false.

Answer 2

False.

a^2 = b^2 + c^2 - 2bc cos A

Answer 3

it is actually a general formula for a more specific,more famous formula, the pythagorean theorem.

Answer 4

I can only remember it in words:

The square of one side of a triangle is equal to the sum of the squares of the other two sides minus twice their product times the cosine of their included angle.

Answer 5

hey i learned it that way too!!!