sec theta - cos theta =1 then tan^2 theta /2 please help I will give brainliest
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consider they as A
secA - cosA =1
1/cosA-cosA=1
(1-cos^2A)/cosA=1
sin^2A/cosA
sinA sinA/cosA
sinA tanA
tanA=1/sinA
tanA=cosecA
Squaring both sides
tan^2A=cosec^2A
dividing both sides by 2
tan^2A/2=cosec^2A/2
tan^2A/2=1/2sin^2A
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