The value of tan2θ(cosec2θ -1) is.
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Answer:
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Step-by-step explanation:
tan2theta=sin2theta/cos2theta
cosec2theta=1/sin2theta
now tan2theta(cosec2theta-1)
=[(sintheta-costheta)(sintheta-costheta)]/
cos2theta
= -(sintheta-costheta)/(costheta+sintheta)
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