Hemaylar1ieJespir Hemaylar1ieJespir
  • 19-11-2016
  • Mathematics
contestada

find the exact value of tan22.5 using the half angle formula.

Respuesta :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 22-11-2016
tan(a/2) = sin a / (1 + cos a)
tan(45/2) = sin(45) / (1 + cos(45)) = (1/√2) / (1 + 1/√2) = (1/√2) / (√2 + 1)/√2  = 1/(√2 + 1) = (√2 - 1)
Answer Link
mrmcutiecat
mrmcutiecat mrmcutiecat
  • 14-02-2020

Answer:

C on Edge

Step-by-step explanation:

I got it right on the test

Answer Link

Otras preguntas

Select the correct answer.
What’s the volume of the equation
The term Koinai Ennoiai refers to .
Geometry 9. find x (click to see photo)
A measurement of 100 millimeters is equal to _______ inches. A. 4 B. 254 C. 40 D. 25.4
What is required before using a respirator? A. Nothing B. Proper training on respirators C. Survey of the work area D. User’s guide
why did geroge marshall, propose aidd to european nations in 1947
HELLPPP!!! 20 pts!! question and the options are included
imagine you are researching the forest in a specific national park. Which resource would be helpful for this research? a pie graph showing how many of each spec
if line m bisects ab at point p, and if ap= 1/2y and PB = y - 2, then find ab