1.

i) (costheta-sintheta)/(costheta+sintheta)=tan(pi/4-theta)=cot(pi/4+theta)=sqrt((1-sin2theta)/(1+sin2theta)) ii) (costheta+sintheta)/(costheta-sintheta)=tan(pi/4+theta)=cot(pi/4-theta)=sqrt((1+sin2theta)/(1-sin2theta))

Answer»


ANSWER :(i)`= TAN (pi/4 -THETA)` (II) `COT (pi/4 +theta)`


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