Math, asked by navsan, 1 year ago

If √3 tan a = 3 sin A, then find the value ofsin A + cos a/ sin A - cos A

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Answered by Anonymous
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Hope this may be helpful for u.
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Answered by purvisri02
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root3 tanA = 3 sinA
root3 sinA/cosA  = root3*root3 sinA
cosA = 1/root3 = b/h
by pythagoras theorem
                          h^2 = b^2 + p^2
                           3    = 1+p^2
                           p    = root2
       =sinA +cosA / sinA -cosA  
       =  (p/h + b/h)   /  (p/h - b/h)
       = (root 2 / root3 + 1 / root3)   /   (root 2 / root3 - 1/root3)
       = (root2+1)/root3   /   (root2-1)/root3
       = (root2+1)  / (root2-1)
       = (root2+1)(root2+1)  /  (root2-1)(root2+1)
       = 3+2root2
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