Formulas are provided to test- takers so that they may focus on application rather than the memorization of formulas. Remember you get no formula sheet at all in the exam. Cos A B cosA cosB - sinAsinB.
Prior learning SL and HL.
Check to see if you were tight d. Cos A B cosA cosB - sinAsinB. New Advanced Higher Mathematics. In examstests the Higher Maths Exam Formulae below is given to help solve trig equations.