SOLUTION:
use the sum and differences formulas to find the exact value of tan75 degrees
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Question 175821:
use the sum and differences formulas to find the exact value of tan75 degrees
Answer by srcedwards(3) (Show Source): You can put this solution on YOUR website!
tan 75 = tan (45 + 30). tan (a + b) = (tan a + tan b)/(1 - tan a * tan b). So your problem, tan 75 = tan (45 + 30) = (tan 45 + tan 30)/(1 - tan 45 * tan 30).
45 and 30 are special angles, so you should know them; tan 30 = /3 and tan 45 = 1. Just plug these in and solve!
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