How to evaluate for the half angle of tangent

👉 Learn how to evaluate the Sine of an angle using the half-angle formula. The half-angle formula for Sine is helpful when you need to determine the exact value of function given an angle but cannot use a calculator or the angle is not on the unit circle. To evaluate all we need to do is enter the angle into the formula and simplify. Rationalizing the denominator is not required but often is asked to be performed.

Organized Videos:
✅ Half Angle Formulas
✅ Evaluate Half Angle Formulas of and Angle
✅ Evaluate Half Angle Formulas from a triangle
✅ Write the Expression as a single function | Half Angle Formulas
✅ Solve Equations using Half Angle Formulas

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[jsoncusta]

hell of a teacher. thanks for having these videos up.

[flyinghighallday]

This was just the problem I needed help on. Thanks

[no_onecares]

tab(2¢)=2tan(¢)/[1-tan^2(¢)]
So tan(3π/4)=2x/[1-x^2]
{Where x= tan(3π/8)}
And we know tan(3π/8)=-1
Sir I hope you like this method also😎😎👍

[samuelcampbell]

What do you say at the very beginning of the video?

[mustangjoe]

IMO it was easier just to leave pi/4 with radical in denominator (1/ sqrt2)
= [(sqrt2+1)/ sqrt2] / 1/ sqrt2
=1/ sqrt2 in denominator is reversed in nominator so the two sqrt2 cancel out leaving you with
=sqrt2 + 1

[johnnoiret]

What the heck is "U", I dont believe its Theta is it?

[no_onecares]

If you have want another method check this is made by me

[barakah]

We're you speaking spanish ? I heard "como se dice" 😂❤