kbark
kbark kbark
  • 08-05-2021
  • Mathematics
contestada

URGENT PLEASE HELP
SERIOUS ANSWERS ONLY
verify 2 csc (2x)=1+ tan^2 x / tan x

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msm555
msm555 msm555
  • 08-05-2021

Step-by-step explanation:

L.H.s.

  • 2csc2x
  • 2/sin2x
  • 2/(2sinxcosx)
  • 1/sinxcosx
  • [sin²x+cos²x]/sinxcosx
  • sin x/cosx +cosx/sinx
  • tanx+cotx

R.H.S.

  • 1+ tan²x/tanx
  • 1+tanx
  • 1+sin x/cosx
  • (cosx+sinx)/cosx

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