Sum and difference of two angles (HSC SSCE Mathematics Extension 1): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the sine sum identity formula?
What is the sine sum identity formula?
sin(θ + φ) = sin θ cos φ + cos θ sin φ
What is the cosine difference identity for cos(θ - φ)?
What is the cosine difference identity for cos(θ - φ)?
cos θ cos φ + sin θ sin φ
How is tan(θ + φ) derived?
How is tan(θ + φ) derived?
tan(θ + φ) = sin(θ + φ)/cos(θ + φ)
What is the formula for sin(θ - φ)?
What is the formula for sin(θ - φ)?
sin(θ - φ) = sin θ cos φ - cos θ sin φ
What is the correct cosine sum identity formula?
What is the correct cosine sum identity formula?
cos(θ + φ) = cos θ cos φ - sin θ sin φ
What is the tangent difference identity?
What is the tangent difference identity?
tan(θ - φ) = (tan θ - tan φ)/(1 + tan θ tan φ)
What is sin(75°) using identities?
What is sin(75°) using identities?
sin(45° + 30°)
What does sin(40°) cos(10°) + cos(40°) sin(10°) equal?
What does sin(40°) cos(10°) + cos(40°) sin(10°) equal?
sin(50°)
What is the purpose of trigonometric identities?
What is the purpose of trigonometric identities?
To simplify trigonometric functions
What aids in visualizing angles in trigonometry?
What aids in visualizing angles in trigonometry?
Unit circle diagrams