takeyabench97 takeyabench97

02-12-2021
Mathematics

contestada

1) Find the value for a that makes sin a = cos 25 true A ) 35 B) 65 D ) 155

Respuesta :

jimrgrant1 jimrgrant1

02-12-2021

Answer:

B

Step-by-step explanation:

Using the cofunction identity

sin(90 - x)° = cosx°

Here x = 25° , then

cos25° = sin(90 - 25)° = sin65°

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