Rolascos3h8al
Rolascos3h8al
21-07-2016
Mathematics
contestada
if sin x = .42, what is cos x?
Respuesta :
dalendrk
dalendrk
24-07-2016
[tex]We\ know:\\\\\sin^2x+\cos^2x=1\to\cos^2x=1-\sin^2x\to\cos x=\sqrt{1-\sin^2x}\\\\\sin x=0.42\\subtitute\\\\\cos x=\sqrt{1-0.42^2}=\sqrt{1-0.1764}=\sqrt{0.8236}\approx0.91[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 49+ )
Otras preguntas
what was the goal of the framers when they met at Independence Hall
Which sentence is punctuated correctly? a. "Chameleons can change colors," Connor explained, "But not to blend in with their surroundings." b. "we learned today
Matter is? A-anything that has mass B- anything with volume C-anything you can see,feel, or taste D- all the above
why is Japan both densely and sparsely populated
The Ratio of men to women in a certain factory is 3 to 4. There are 198 men. How many workers are there?
How do Macbeth and Lady Macbeth plan to murder the king? a. Macbeth will invite the king for a tour of the castle and then stab him to death in an isolated loca
90 c + 62/9 , when c = 37
What was the effect of the Supreme Court’s decision in the case of Lochner v. New York?
Who believed the king should have a divine right? Hobbes or Locke
What does the ability to build great buildings out of Stone tell you about Mayan political power. explain?
