JEE Main & Advanced Mathematics Trigonometric Equations Question Bank Relation between sides and angles, Solutions of triangles

  • question_answer
    In a \[\Delta ABC\],side b is equal to          [MP PET 1984,  92]

    A) \[c\cos A+a\cos C\]

    B) \[a\cos B+b\cos A\]

    C) \[b\cos C+c\cos B\]

    D) None of these

    Correct Answer: A

    Solution :

    It is a fundamental property.


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