If you were going to calculate cos(105°) using the sum and difference formulas, what degree would you use for A and what degree would you use for B?

the answer is (4,3)

since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.

sorry

step-by-step explanation:

sorry, but im pretty sure its a now that i look at it

chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.