IB HL Math Proof #2: sin(A+B), cos(A+B)
IB HL Math Proof: sin(A+B), cos(A+B)
Assigned: Tuesday, 9/25/07
Due: Friday, 9/28/07
In class we proved the formulas
sin(A+B) = sinAcosB + cosAsinB and
cos(A+B) = cosAcosB – sinAsinB
We proved the first formula using a figure of two right triangles and we proved the second formula rotating a unit circle about the origin.
Prove the cos(A+B) = cosAcosB – sinAsinB again, but this time, use triangles.
For extra credit, prove sin(A+B) = sinAcosB + cosAsinB using the unit circle in the coordinate plane to prove the sine addition formula.
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- trigonometric formulas
- paper reference s
- analysis trig review
- law of sines and cosines word problems
- ma t1 trigonometry and measure of angles y11
- ib hl math proof 2 sin a b cos a b
- physics i math assessment
- the unit circle simple trigonometry
- investigating sine cosine and tangent of obtuse angles
- trigonometry