Identity — Algebra I · Grade 9 or accelerated Grade 8, what it means and where it is taught

An equation true for every value, like 2(x + 3) = 2x + 6.

Taught in Algebra I · Grade 9 or accelerated Grade 8.

Where it is taught

Practise this idea

1 question in the course bank use Identity, in Trigonometric Identities & Equations.

Problem 1

Simplify 1-cos2θ using an identity. Answer in the form sin^2.

Worked answer

sin^2

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Elsewhere

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