adesMel4Monika adesMel4Monika

21-11-2016
Mathematics

Answered

How do you use the half angle formula for

sin (5π/12)?

Verified Answer :

HomertheGenius HomertheGenius

23-11-2016

The half angle formula is:
sin x/2 = +/- √ (( 1-cos x ) / 2 )
5π/12 = 5π/6 : 2
sin 5π/12 = +/- √(( 1 - cos ( 5π/6)) / 2 )
cos 5π/6 = cos 150° = -√3/2
\(sin (5 \pi /12) = \sqrt{ \frac{1+ \sqrt{3}/2 }{2} } = \\ =\sqrt{ \frac{2+ \sqrt{3} }{4} } = \\ = \frac{ \sqrt{2+ \sqrt{3} } }{2} =\)
≈ 0.966 ( this is sin 5π/12 )

Answer Link

Related Questions

There are three main types of mixtures Which is a homogeneous mixture Salt water contains small particles that have moved so they are evenly spread through the

What is this I need help

6 Which of the following is a statement of deductive reasoning AAll my friends are named Sally all girls named Sally are my friends BAll movies are entertaining

what is the formal second person plural subject pronoun in spanish

Question #3230338

What is the most recognizable feature of a hedgehogs appearance

Jessie sorted the coins in her bankshe made 7 stacks if 6 dimes and 8 stacks of 5 nickelsshe then found 1 dime and 1 nickelhow many dimes and nickels does jessi

High pressure center of dry air

Tyrone is converting 4550 to a percent Which method should he use to find the percent

One reason the Byzantine Empire outlived the Western Roman Empire was that

Web Analytics Made Easy - Statcounter