Math Tutoring on Half Angle Trigonometric Identities
Half Angle Identities for Cosine:
Half Angle Identities for Sine:
Half Angle Identities for Tangent:
We can see in math tutoring, that each of the Half Angle Identity, the answer appears to have two values- one positive and one negative (see the ‘±’ in front of the radicals).
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1. Deduce Half Angle Identities of Tangent with the help of Double Angle Identities.
2. Why each of the Half Angle Identities has two values (±)?
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