KeiajMarljayne
KeiajMarljayne
24-11-2016
Mathematics
contestada
Evaluate and simplify tan 15º.
Respuesta :
syed514
syed514
27-11-2016
tan(15) = tan(45 - 30)
= [tan(45) - tan(30) ] / [ 1 + tan(30)tan(45)]
= (1 - 1/sqrt(3)) /(1 + 1/sqrt(3))
= (sqrt(3) - 1)/(sqrt(3) + 1)
= (sqrt(3) - 1)^2 /(3 - 1)
= 1/2 [3 + 1 - 2sqrt(3) ]
= (2 - sqrt(3) )
= 0.27 is your answer
Answer Link
VER TODAS LAS RESPUESTAS ( 39+ )
Otras preguntas
Using the function f(x) = 2x + 7 find the following: (show your work) f(2) f(7)
Leroy wants to provide medical treatment, including prescribing psychoactive drugs, to help individuals with psychological disorders. leroy wants to be a:
Which of these treatments may increase an HIV patient's life span? A. Massage therapy B. Antibiotics C. HIV vaccine D. Anti-retroviral thera
if the supreme court heard a case about african americans being denied the right to vote, what would the justices use to determine if the discrimination was jus
Why might a commitment to law and justice be considered rome's greatest legacy?
How did passage of the 17th Amendment reflect the condition of the progressive movement?
a regular garden of area of 75 ft^2 is bounded on three sides by a wall costing $8 per ft and on the fourth by a fence costing $4 per ft. what are the most econ
What is the y and x? write an equation.
Was Harry Potter the wise man, the hero ir the temptress?
CdBr : Cu3(PO4)2 : KNO3 : Ag2SO3 : Na2CO3 : MgBr : Mn(OH)2 :
