Menu
Home / Arithmetic Aptitude / Trigonometry :: Discussion

Discussion :: Trigonometry

  1.  Considering Cosine rule, cos C is equal to

    2. A.

    a² - b² - c²⁄2bc
    B.

    a² + b² - c²⁄2ab
    C.

    2a + 2b - 2c⁄2ac
    D.

    2a² + 2b² + 2c²⁄2abc

    View Answer

    Workspace

    View Answer

    Answer : Option B

    Explanation :

    a² + b² - c²⁄2ab

Write your comments here:

Be The First To Comment