ruperttshepo ruperttshepo

02-05-2021
Mathematics

contestada

If sin12 = k determine cos24 in terms of k

Respuesta :

LammettHash LammettHash

02-05-2021

Recall the double-angle identity,

sin²(x) = (1 - cos(2x)) / 2

Now if sin(12°) = k, then

k ² = sin²(12°) = (1 - cos(24°)) / 2

→ cos(24°) = 1 - 2k ²

Answer Link

Otras preguntas

The right of kings ended in England during the?

benson earned 420 bonus points for playing 12 perfect games of trivia. he earned a total of 1260 points. how many points, p, did benson earn for each perfect ga

What position should a suspected stroke patient be transported in?

give me a song with simlie in it

x + 4y =6 y=- -x + 3

Why did William Penn establish the colony of Pennsylvania? Responses A He hoped to found a place where Quakers would not be allowed to live. B He wished

hi! can anyone help!:(

Which scientist was responsible for creating the equation E=mc²?a) Isaac Newtonb) Albert Einsteinc) Marie Curied) Stephen Hawking

what is the net decimal equivalent rate as a percent for a series of trade discounts of 15 12 and 8

Find the angle x Please help