arshsangar2 arshsangar2
  • 02-04-2018
  • Geography
contestada

In a right triangle ABC, tan(a)= 20/21.find sin(a) and cos(a)

Respuesta :

Geniusmark Geniusmark
  • 12-04-2018
sin(a)=opposite/hypotenuse
        ∴hypotenuse=√20²+21² 
                             =√400+441
                             =√841
                             =29
          ∴sin(a)=20/29
                     =0.6897

cos(a)=adjascent/hypotenuse
           =21/29
           =0.7241 
Answer Link

Otras preguntas

20. (3 pt) Which Russian ruler enlarged the Russian empire and built a magnificent cathedral but ruled cruelly? A. Ivan III, the Great B. Basil, the Feared C. I
What is the percent increase from 25 to 95
why is it helpful to sequence many Human genomes, instead of just one?
What is the verb in this simple sentence? My favorite vegetables include carrots, cucumbers, and broccoli. A. vegetables B. and C. include D. favorite
If 2 is added to seven times a number and equals 8 more than six times a number what is the number
how to get answer in ratio fraction in simplest form ? 6 poodles out of 18 dogs
Which ratio is the odd one out? 5:30 2:12 7:41 1:6 10:60
what is 1/4 of 100 dollars
How to simplify 15/18
Mercantilism is a. an economic theory that stressed the importance of colonies as sources for raw materials. b. an economic system in which private businesses p