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that tant square teeta -1/cos square teeta =-1.
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Answer:
change tan square theeta into sin/ cos -1 / cos square theeta now take Lcm
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Answer:tan^2-1/cos^2=-1
Sin^2/cos^2-1/cos^2=-1
Sin^2-1/cos^2=-1
-(1-sin^2)/cos^2=-1
-(cos^2)/cos^2=-1
-1=-1
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