Bookiesbaby9963 Bookiesbaby9963

02-03-2018
Mathematics

contestada

If sec a = 5/4 and a is an angle in quadrant iv find the value of cos a

Respuesta :

calculista calculista

11-03-2018

we know that
sec a = 5/4
sec(a)=1/cos(a)
then
cos (a)=1/sec(a)
cos (a)=1/(5/4)=4/5---> is positive because the function cos is positive in IV quadrant

the answer is cos(a)=4/5

Answer Link

Otras preguntas

Which of the following package deals is a better buy according to unit price? $5.73 for 3 cans $11.44 for 8 cans $13.55 for 5 cans $14.28 for 6 cans

Mei-Ling, who enjoys a close relationship with her large extended family, was unhappy to learn that her new romantic interest, Ryan, is only close to his mother

(figure 1)shows the wave function of an electron in a rigid box. The electron energy is 14. 5 ev. You may want to review (page 1151)

The current in the electron beam of a typical video display terminal is 200 µa. How many electrons strike the screen each minute?

Read the sentence. Writers use verbal phrases containing gerunds, infinitives, and participles to add variety and interest to their writing. What type of phrase

-9v -6(8-7v) Explain please

last question pls help :))

PLEASE HELP which person most clearly uses effective nonverbal communication in a speech?

12 Mes cousins Complete with the appropriate possessive adjectives. Bonjour, tout le monde! Je m'appelle Samuel David. Guy David es cousi cousin et Estelle Gold

ABC is isosceles. m X = [?] please help!!