RIYAZmaharjan
RIYAZmaharjan
18-02-2021
Mathematics
contestada
SecA (1-sinA). (Sec A+tanA)
Respuesta :
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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