1 / tan x + 1 / cot x = 2 cosec 2 x
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1/tan × +tan ×
=(1+tan^2×)/tanx
=sec^2×/tanx
=(1/cos^2×)/(sinx/cosx)
=cosx/cos^2×*sinx
=1/sinx*cosx
answer:
=2/2sinxcosx
=2/sin2x
=2cosec2x=LHS and hence it is proved.
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