2 Answered Questions for the topic Sum To Product Formulas

Sum To Product Formulas Trigonometry

04/20/14

sin 11 pie/12 + sin 7pie/12

use the sum to product formula to find the exact value of 
Sum To Product Formulas Trigonometry

04/20/14

cos 165 degrees - cos 75 degrees

use the sum to product formula to find the exact value of 

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