The smallest positive value of \( x \) (in degrees) for which \( \t...

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The smallest positive value of \( x \) (in degrees) for which \( \tan \left(x+100^{\circ}\right)=\tan \left(x+50^{\circ}\right) \tan x \tan \left(x-50^{\circ}\right) \) is :
P
(A) \( 30^{\circ} \)
(B) \( 45^{\circ} \)
W
(C) \( 60^{\circ} \)
(D) \( 90^{\circ} \)
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