ASM 11th edition, page 122, problem 10

vendredi 19 septembre 2014

Determine an expression for (a angle 5 at i)/(a angle 6 at i).



What is your strategy for answering a question like this? Do you begin with the given expression and proceed in a specific direction or do you begin with the solutions and try to proceed back to the expression?



I can track with the argument laid out at the end of the chapter but I don't think I'd have been naturally prompted to try anything similar to what they did in arriving at the solution, which is




Spoiler:


(a angle 2 at i + s angle 3 at i)/(a angle 3 at i + s angle 3 at i)








ASM 11th edition, page 122, problem 10

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