Some videos I've made
Prerequisite for addition formula: https://www.youtube.com/watch?v=iHZmi2MHqWc
Proof of formula for sin(A+B): https://www.youtube.com/watch?v=BEETggUVMrY
Proof of formula for cos(A+B): https://www.youtube.com/watch?v=gTpNnlRxnIY
Proof of formula for tan(A+B): https://www.youtube.com/watch?v=D5VJiL0DMWU
Some C3 Trig stuff: https://www.youtube.com/watch?v=Gcby6WYAVKg
The product rule proof with limits:https://www.youtube.com/watch?v=9FRFRVTUthk
EA
Related Maths A Level answers
All answers ▸Find the coordinates of the sationary points on the curve x^2 -xy+y^2=12
I already done this.
Express √75 in the form of n√3 , where n is an integer. Using this information, solve the following equation: x√48 = √75 + 3√3 (4 marks)
How would you solve the inequality x^2-2x-8 >= 0?