kittykat227
kittykat227
07-08-2017
Mathematics
contestada
Find tan θ if cos θ = 1/4 and sin θ < 0.
Respuesta :
ghanami
ghanami
07-08-2017
hello :
cos²(θ) +sin²(
θ) = 1
(1/4)² +sin²(
θ) = 1
sin²(θ) = 1 -1/16
sin²(θ) =15/16
sin(θ) = - √(15/16)=- √15/4 because :
sin θ < 0.
tan (θ) =sin (θ)/ cos( θ) =(- √15/4)/(1/4) = - √15
Answer Link
VER TODAS LAS RESPUESTAS ( 79+ )
Otras preguntas
PLEASE HELPPPPPPPPPPPPPPPPPPPPIf the difference of two number is 3 and the product is 70 then find the sum of the square of the numbers
How did his ideas about government differ from his predecessors’ classical divisions of monarchy, aristocracy and democracy?
The Western Roman Empire was weakened by which of these?
convert the following temperature to the Celsius scale. (a) 293k. (b) 470k.
$5 is what percent of $10?
PLEASE HELP, WILL GIVE BRAINLIEST The following steps are used to rewrite the polynomial expression (x + 4y + z) (x - 7y). Step 1: x(x - 7y) + 4y(x - 7y) + z(x
To get rid of a negative exponent, move the part with the negative exponent to the other side of the_________(blank)
Jeder in dieser App spricht Deutsch. Wenn ja, antworten Sie mit Ihrem Lieblingsessen
1-5 PLEASE SHOW WORK!! I will mark brainliest and a lot of points!!
In taxonomy, what traits have been used to classify species? Select all that apply. Geographic distributions Anatomical features Differences in atomic structure
Q&A Platform for Education
Platform Explore for Education
