If X = sin(θ + 7π/12) + sin(θ --. π\12)+ sin( θ +3π/12),. y = cos( θ + 7π/12) + cos(θ -?

if X = sin(θ + 7π/12) + sin(θ --. π\12)+ sin( θ +3π/12),. y = cos( θ + 7π/12) + cos(θ - π/12)+ cos( &thet

if X = sin(θ + 7π/12) + sin(θ --. π\12)+ sin( θ +3π/12),. y = cos( θ + 7π/12) + cos(θ - π/12)+ cos( θ + 5π/12) then prove thatX/Y -- Y/X = tan2θ

or:if X = sin(\u03b8 + 7\u03c0/12) + sin(\u03b8 --. \u03c0\\12)+ sin( \u03b8 +3\u03c0/12),. y = cos( \u03b8 + 7\u03c0/12) + cos(\u03b8 - \u03c0/12)+ cos( \u03b8 + 5\u03c0/12) then prove thatX/Y -- Y/X = tan2\u03b8

or:You are not using standard symbols, so there is no answer. Spelling mistrakes can not be tolerated in math. Your presentation must be perfect.

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