(sec theta - cos theta) (cot theta + tan theta) = tan theta sec theta
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change in sin and cos form
(1-cos square theta)/cos theta × (cos square theta + sin square thita / cos theta sin theta)
use identity
sin square theta ÷sin theta cos theta cos theta =tan theta sec theta
(1-cos square theta)/cos theta × (cos square theta + sin square thita / cos theta sin theta)
use identity
sin square theta ÷sin theta cos theta cos theta =tan theta sec theta
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