nathanortiz04no
nathanortiz04no nathanortiz04no
  • 12-10-2021
  • Mathematics
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Trigonometric identities: Performance task

Trigonometric identities Performance task class=

Respuesta :

Аноним Аноним
  • 12-10-2021

#1

[tex]\\ \sf\longmapsto (1+cosx)(1-cosx)[/tex]

[tex]\\ \sf\longmapsto 1-cos^2x[/tex]

[tex]\\ \sf\longmapsto sin^2x[/tex]

#2

[tex]\\ \sf\longmapsto \dfrac{1}{cot^2x}-\dfrac{1}{cos^2x}[/tex]

[tex]\\ \sf\longmapsto tan^2x-sec^2x[/tex]

[tex]\\ \sf\longmapsto 1[/tex]

Answer Link
Unknownbeinghere
Unknownbeinghere Unknownbeinghere
  • 12-10-2021

Answer:

1) sin²x

2) 1

Step-by-step explanation:

1) (1+cos x)(1-cos x)

=> 1-cos²x

=> sin²x

2) 1/cot²x -1/cos²x

=> tan²x-sec²x

=> 1

Answer Link

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