exact value for tan(15), using difference formula for tangent

Описание к видео exact value for tan(15), using difference formula for tangent

exact value for tan(15), using difference formula for tangent,
find the exact value of tan(15 degrees),
Use trig identities to find the exact value,

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tags: tan(15), tan(pi/12), difference formula for tangent, trig lessons, trig examples, exact value for tan(15), 黑比紅比

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