TRIG/conversion formulas Q

[RT0223]

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For those who had taken the DAT, have you seen any questions that require the knowledge of half-angle, double-angle, product to sum, sum to product, sum and difference formulas???

And for the conversion, ozs, pds, quarts, pints, ft, tons, etc(a million more)...., how much of those c**p do we need to memorize?

Thanks a ton!
:scared