Shared Flashcard Set

Details

Title

Double and Half Angles

Description

sin and cos of double and half angles

Total Cards

Subject

Mathematics

Level

Undergraduate 1

Created

08/08/2020

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Additional Mathematics Flashcards

Term

Double angle formula:

sin(2θ) = ?

Definition

sin(2θ) = 2 sin(θ) cos(θ)

Term

Double angle formula:

cos(2θ) = ?

Definition

cos(2θ) = cos²(θ) - sin²(θ)

Term

Half angle formula:

2 cos²(θ) = ?

Definition

2 cos²(θ) = 1 + cos(2θ)

Term

Half angle formula:

2 sin²(θ) = ?

Definition

2 sin²(θ) = 1 - cos(2θ)