roberthagemanjr roberthagemanjr

16-01-2020
Mathematics

contestada

Which trigonometric function is equal to Cos 4 degrees?
A. Sin 44 degrees
B. Sin 4 degrees
C. Sin 86 degrees
D. Sin 96 degrees

Respuesta :

jimrgrant1 jimrgrant1

16-01-2020

Answer:

C

Step-by-step explanation:

Using the cofunction identity

sin(90 - x)° = cosx°, thus

cos4° = sin(90 - 4)° = sin86° → C

Answer Link

Otras preguntas

Compare the absolute magnitude of stars with the apparent magnitude of Stars

Which factor was the greatest advantage of the United States in World War II?

Which equation represents the total ionic equation for the reaction of HNO3 and NaOH?

Fossil evidence shows that

What large river in Brazil has its mouth at the Atlantic Ocean?

Leah has three fewer than 4 times as many DVDs as Sonia has. Leah has 37 DVDs how many DVDs does sonia have

Find the slope of the line segment that joints the points A(2, -8) and B(-1, 16)

In this sentence "Look in the index for a mention of this type of error" which word is the subject; type, mention, (you), or index

Sarah burns an average of 744 calories in 45 minutes while running. She ran at 10 miles per hour. There are 5,280 feet per a mile. How many calories did Sarah b

what are 2 equationsthat have infinetely many solutions