kTatyaj3pentuli kTatyaj3pentuli
  • 11-11-2016
  • Mathematics
contestada

Which of these is equal to cos 47Á? A) cos 43Á B) sin 43Á C) tan 43Á D) cos 133Á

Respuesta :

pandamanog
pandamanog pandamanog
  • 17-11-2016
I believe the answer is B.
Answer Link
alsteva alsteva
  • 18-11-2016
Correct answer is B.

[tex]\alpha+\beta=90^o \\ \cos{\alpha}=\sin{(90^o-\alpha)} \\ \cos{47^o}=\sin{(90^o-47^o)}=\sin{43^o}[/tex]
Answer Link

Otras preguntas

Vocabulary in Spanish
A sky diver jumps out of an airplane. After 0.8 second she has fallen 100 feet. After 3.1 seconds she has fallen 500ft. Emitiaz says that the skydiver should fa
What is the purpose of the "Egyptian Pyramids" caption? A. to introduce a supporting detail B. to state a key idea C. to provide details about an image
The graph shows the balance of an account that is earning interest over time. In which year was the account balance about $150? a. Year 4 b. Year 5 c.
A spinner is divided into five sections numbered 1 through 5. Juana records the number the spinner lands on for each of 50 spins. She computes and graphs the re
how does diffusion create equilibrium
Which of the following statements about the societal costs of tobacco use is TRUE?
In your own words, explain why the geological structures in Florida and Colorado have different ages.
The "powerhouse" of the cell produces atp energy in the:
The earliest descriptive for improvisation in jazz was