MacNCheese0816
MacNCheese0816 MacNCheese0816
  • 11-03-2020
  • Mathematics
contestada

Please help with the question above. There are three correct answers.

Please help with the question above There are three correct answers class=

Respuesta :

joseaaronlara
joseaaronlara joseaaronlara
  • 11-03-2020

Answer:

The answer to your question are first, third and fifth ones.

Step-by-step explanation:

tan Ф =  1 / cot Ф     are reciprocal identities

csc Ф = 1/ sec Ф      This equality does not exist

1 - sin² Ф = cos² Ф   is a Pythagorean identity

1 + sec²Ф = tan²Ф    This identity is incorrect

sec Ф = 1/cos Ф       This is a reciprocal identity

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