Trigonometric identities lessons
14 animated step-by-step lessons (Trigonometry). Decide whether a trigonometric equation is an identity and show why.
Showing 1–14 of 14
- Video lesson1:13TrigonometryHigh school6 stepsIs sin(x) + cos(x) = 1 an identity?
Trigonometric identities
- Video lesson1:08TrigonometryHigh school6 stepsIs sin(2x) = 2sin(x)cos(x) an identity?
Trigonometric identities
- Video lesson1:09TrigonometryHigh school6 stepsIs tan(x) × cos(x) = sin(x) an identity?
Trigonometric identities
- Video lesson1:11TrigonometryHigh school6 stepsIs sin(x + π) = sin(x) an identity?
Trigonometric identities
- Video lesson1:10TrigonometryHigh school6 stepsIs cos(2x) = 1 - 2sin(x)² an identity?
Trigonometric identities
- Video lesson1:10TrigonometryHigh school6 stepsIs 1 + tan(x)² = sec(x)² an identity?
Trigonometric identities
- Video lesson1:10TrigonometryHigh school6 stepsIs sec(x) - cos(x) = sin(x)tan(x) an identity?
Trigonometric identities
- Video lesson1:10TrigonometryHigh school6 stepsIs cot(x) + tan(x) = sec(x)csc(x) an identity?
Trigonometric identities
- Video lesson1:14TrigonometryHigh school6 stepsIs sin(x)/(1 - cos(x)) = (1 + cos(x))/sin(x) an identity?
Trigonometric identities
- Video lesson1:13TrigonometryHigh school6 stepsIs cos(x)⁴ - sin(x)⁴ = cos(2x) an identity?
Trigonometric identities
- Video lesson1:11TrigonometryHigh school6 stepsIs cos(2x) = 2cos(x) an identity?
Trigonometric identities
- Video lesson1:14TrigonometryHigh school6 stepsIs (1 - cos(x))(1 + cos(x)) = sin(x)² an identity?
Trigonometric identities
- Video lesson1:13TrigonometryHigh school6 stepsIs tan(x) = sin(x)cos(x) an identity?
Trigonometric identities
- Video lesson1:12TrigonometryHigh school6 stepsIs sin(x)² + cos(x)² = 1 an identity?
Trigonometric identities