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