The trigonometric half angle formulas are:

1. Sine Half-Angle Formula:
sin(x/2) = ± sqrt[(1 - cos(x))/2]

2. Cosine Half-Angle Formula:
cos(x/2) = ± sqrt[(1 + cos(x))/2]

3. Tangent Half-Angle Formula:
tan(x/2) = ± sqrt[(1 - cos(x))/(1 + cos(x))] or tan(x/2) = sin(x)/(1 + cos(x))

The sign (±) depends on the quadrant in which the half angle lies.

Question

The trigonometric half angle formulas are:

1. Sine Half-Angle Formula:
sin(x/2) = ± sqrt[(1 - cos(x))/2]

2. Cosine Half-Angle Formula:
cos(x/2) = ± sqrt[(1 + cos(x))/2]

3. Tangent Half-Angle Formula:
tan(x/2) = ± sqrt[(1 - cos(x))/(1 + cos(x))] or tan(x/2) = sin(x)/(1 + cos(x))

The sign (±) depends on the quadrant in which the half angle lies.

Knowee AI · Accepted Answer

The trigonometric half angle formulas are:

1. Sine Half-Angle Formula:
sin(x/2) = ± sqrt[(1 - cos(x))/2]

2. Cosine Half-Angle Formula:
cos(x/2) = ± sqrt[(1 + cos(x))/2]

3. Tangent Half-Angle Formula:
tan(x/2) = ± sqrt[(1 - cos(x))/(1 + cos(x))] or tan(x/2) = sin(x)/(1 + cos(x))

The sign (±) depends on the quadrant in which the half angle lies.

write the trigonometric half angle formulas