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Question


In the figure, triangles ABC and DBE are right triangles. What is cos invisible function application B ?

The correct answer is: 0.6


    In right angle straight triangle D E B right angle at E
    So cos invisible function application B equals fraction numerator B E over denominator B D end fraction
    BE = 6 ,BD =10 (given)
    So, cos invisible function application B equals 6 over 10 equals 3 over 5 left parenthesis text  or  end text right parenthesis 0.6

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