Sin2tita÷1+cos2tita=tantita
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Step-by-step explanation:
sin2∅/1+cos2∅=tan∅
{sin2∅=2sin∅cos∅
cos2∅=2cos²∅-1}
2sin∅cos∅/1+2cos²∅-1=tan∅
2sin∅cos∅/2cos²∅=tan∅
2sin∅/2cos∅=tan∅
tan∅=tan∅
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