RIYAZmaharjan
RIYAZmaharjan RIYAZmaharjan
  • 18-02-2021
  • Mathematics
contestada

SecA (1-sinA). (Sec A+tanA)​

Respuesta :

sophiyana
sophiyana sophiyana
  • 18-02-2021
1
=— ( 1-sinA) ( 1. SinA
CosA — + —. )
CosA. CosA

=1-sinA
-————. *. 1+sinA
CosA –———–
CosA



=1-sin^2A
——————
Cos^2A

=cos^2A
——————
Cos^A


=1

Proved
Answer Link

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