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heya mate
lhs
cosec2A+cot 2A
=1/sin2A+cosA/sin2A
=1+cos2A/sin2A
=2 cos^2A/2cosA×sinA
=cosA/sinA
=cotA...
proved....Rhs
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Answered by
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cosec 2A+ cot2A
1/sin2A+cos2A/sin2A
(1+cos2A)/sin2A
(1+2cos squre A _1)/2sinA.cosA
2cosAcosA/2sinA cosA
= cot A
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