kittykat227 kittykat227
  • 08-08-2017
  • Mathematics
contestada

Find tan θ if sec θ = square root of twenty six divided by five and sin θ < 0.

Respuesta :

ghanami
ghanami ghanami
  • 08-08-2017
hello : sec(θ) = (√26)/5  and: sin (θ) < 0
note : 
sec(θ) =1/cos(θ) 
so : 1/cos(θ)  =  (√26)/5

cos(θ) = 5/√26
cos²(θ)+sin²(θ)=1
25/26+sin²(θ)=1
sin²(θ)= 1/26
sin(θ)= -(1/√26)     ...because : sin θ < 0
tan
(θ)= sin(θ)/cos(θ) =  -(1/√26) /5/√26 = -1/5
Answer Link

Otras preguntas

Between witch pair of numbers is the exact product of 379 and 8?
what was one important right granted in the Magna Carta
what is 35 as a fraction
By 1690, the colony of Massachusetts _____ its own coins and paper money. What is the past progressive tense of the verb "issue"? a) would have been issuing b)
CONSTRUCT AN ARGUMENT... Explain how you can mental determine whether 125 x 0.9 is less than,greater than,or equal to 125.
Mendeleev arranged the known chemical elements in a table according to increasing
The term semite refers to a large language ethnic grouping that includes which two middle eastern people among its members? A. jews and turks B. Jews and irania
who organized trade in medieval cities and towns? A. guilds B.clergy C.knights D.journeymen
How are burning and rusting similar?
Where might water be found on the moon? a. in the atmosphere b. inside moon rocks c. near the poles d. in the maria
good job