aleavilezz123 aleavilezz123
  • 29-10-2020
  • Mathematics
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HELP ME ITS MY LAST PROBLEM ITS PRECAL HELP MEEEE

HELP ME ITS MY LAST PROBLEM ITS PRECAL HELP MEEEE class=

Respuesta :

seetha1980
seetha1980 seetha1980
  • 29-10-2020

Step-by-step explanation:

LHS = (tan β + Sec β)(1 - sin β)

= ((sin β / cos β) + (1/cos β))(1-sin β)

= ((1+ sin β)*(1- sin β))/cos β

= (1 - sin^2 β) / cos β

= cos^2 β / cos β

= cos β

= RHS

Hence proved

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