A vector makes angles alpha,beta "and" gamma with the X,Y and Z axes respectively . Find the value of the expression (sin^(2)alpha+sin^(2)beta+sin^(2)gamma)/(cos^(2)alpha+cos^(2)beta+cos^(2)gamma)

A vector makes angles alpha,beta "and" gamma with the X,Y and Z axes r

1.	A vector makes angles alpha,beta "and" gamma with the X,Y and Z axes respectively . Find the value of the expression (sin^(2)alpha+sin^(2)beta+sin^(2)gamma)/(cos^(2)alpha+cos^(2)beta+cos^(2)gamma)
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