<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />

# Finding Exact Trigonometric Values Using Sum and Difference Formulas

## Convert angles to sum or difference of 30, 45, and 60 degrees to solve.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Finding Exact Trig Values using Sum and Difference Formulas

This lesson uses the sum and difference formulas to find the exact trig values of some angles.

0
• Practice
0%

0