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

Solve x2 – 8x = 3 by completing the square. which is the solution set of the equation

How might a baby boom in Sweden create a financial burden for the government? A. It would necessitate new schools, classrooms, and resources for children. B. It

In a standard normal distribution 95% of the data is within +/- _______standard deviations of the mean. 0 1 2 3

Under what circumstances did napoleon become known as a hero of the french republic

The absolute value of this number is less than 1/2 but greater than 1/10

what is 575 estimated to?

Read this excerpt from “lake titicaca” by miguel angel asturias. they travel with their llamas. they see me, knitting their cheeks to contemplate me with their

What is the difference between weather and climate?

A single atom of carbon is joined to a hydrogen atom. What is the maximum double single bonds the carbon has yet to form A.1 b.2 c.3 d.4

The Jones family has a disposable income of $90,000 annually. Assume that their marginal propensity to consume is 0.8 (the Jones family spends 80% of new dispos