In this video I show you a leaving cert higher level trigonometry question. Credit: Patrick Maye

TheMathsTutor works out the answer to the question.

TheMathsTutor works out the answer to the question.

TheMathsTutor works out the answer to the question.

TheMathsTutor works out the answer to the question.

TheMathsTutor works out the answer to the question

TheMathsTutor works out the answer to the question.

TheMathsTutor works out the answer to the question.

TheMathsTutor works out the answer to the question.

TheMathsTutor works out the answer to the question.

Check out KeysToMaths1 for more tutorials and worked solutions: https://www.youtube.com/channel/UCOYoe9L9R13HGUIhszjkeug

Worked solution to higher level 2014 trigonometry question. Check out KeysToMaths1 for more tutorials and worked solutions: https://www.youtube.com/channel/UCOYoe9L9R13HGUIhszjkeug

Check out KeysToMaths1 for more tutorials and worked solutions: https://www.youtube.com/channel/UCOYoe9L9R13HGUIhszjkeug

Check out KeysToMaths1 for more tutorials and worked solutions: https://www.youtube.com/channel/UCOYoe9L9R13HGUIhszjkeug

Check out KeysToMaths1 for more tutorials and worked solutions: https://www.youtube.com/channel/UCOYoe9L9R13HGUIhszjkeug

Check out KeysToMaths1 for more tutorials and worked solutions: https://www.youtube.com/channel/UCOYoe9L9R13HGUIhszjkeug

Worked solution to the trigonometry question on the higher level sample paper 2 (2012). Check out KeysToMaths1 for more tutorials and worked solutions: https://www.youtube.com/channel/UCOYoe9L9R13HGUIhszjkeug

Worked solution to 2014 higher level trigonometry question. 0:00 Cosine Rule, Area of a Triangle 2:38 Circumcentre of a Triangle 4:26 Compound Angle Identity for Cos2A 5:03 Arc Length and angle in radians 8:00 Graph of Asinkt, range and period 10:39 Standard Deviation using Calculator Check out KeysToMaths1 for more tutorials: https://www.youtube.com/channel/UCOYoe9L9R13HGUIhszjkeug

Using the unit circle to define the sine, cosine, and tangent functions

Proving the trigonometric identity 'Tan(A+B)' equals (tanA + tanB)/(1 - tanAtanB).

Proving the tigonometric identity 'Cos(A+B)' equals cosAcosB - sinAsinB.

Proving the trigonometric identity 'Sin(A+B)' equals cosAsinB + sinAcosB.