crystalstewart11 crystalstewart11

05-04-2017
Mathematics

contestada

Rewrite 1−2 sin ^2 (22.5∘) using a double-angle identity.

A. sin 45
B. sin 11.25
C. cos 11.25
D. cos 45

Respuesta :

malcolmfernandes10 malcolmfernandes10

07-04-2017

Using the identity :

Cos (2a) = 1-2 Sin^2(a)

Therefore :1−2 sin ^2 (22.5∘) = Cos(2a)
= Cos (2 * 22.5) = Cos 45

Answer Link

websitetechie websitetechie

13-10-2021

Answer:

D. cos 45 degrees

Explanation:

I got it correct in my test :)

Ver imagen websitetechie

Answer Link

Otras preguntas

Some portions of the San Andreas Fault are described as __________ because there the two sides move slowly and continuously past each other instead of storing u

Use the paragraph to answer the question. "LaShawn inhaled deeply and leaned into her stretch. She would hold it for 90 seconds: a routine she followed before

Realizează o documentare despre atmosferă, aer, poluare, apă, hrană, energie, deșeuri.

A gardener wants to grow hydrangeas in his flowerbeds.He has three different types of soil. Soil A has a pH of 5.0, Soil B has a pH of 6.0,, and soil C has pH o

How can Project Managers develop a comprehensive schedule? Be sure to provide examples to support your answers. Some claim that Project Management eliminates th

A cell that begins meiosis has 23 chromosomes inherited from the mother (shown in green in the cartoon below) and 23 chromosomes inherited from the father (show

A 5 month old demonstrates surprise when an unexpected event occurs. This is a demonstration of ________. 1) Cognitive development 2) Emotional development 3) P

What is the empirical formula mass of C₈H₈N₂? (atomic masses: C = 12 amu, H = 1 amu, N = 14 amu).

A user complains that their system is running extremely slowly. You bring up the task manager and see the following. What resource is the primary bottleneck, an

Place the computational steps in the order in which you would do them to find the standard deviation for a probability distribution. Start with the one you woul

Q&A Education