Which of the following is a correct variation of the law of cosines?
A. a^2=b^2-c+bc cos A
B....
Mathematics, 11.10.2020 09:01, lovejennaaj
Which of the following is a correct variation of the law of cosines?
A. a^2=b^2-c+bc cos A
B. a^2=b^2+c-2 bc cos A
C. a= c-2 bc cos A
D. a^2= bc-2 b^2c^2 cos A
Answers: 3
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