amandasan98 amandasan98

20-03-2017
Mathematics

contestada

Complete the trigonometric identity.
cot(-u)=

Respuesta :

ghanami ghanami

22-03-2017

Hello :
cot(-u)= cos(-u)/sin(-u)
= cos(u)/(-si(u)) because : cos(-u) = cos(u) and sin(-u) = - sin(u)
= -(cos(u)/si(u))
cot(-u) = -cot(u)

Answer Link

Otras preguntas

Lola measures three for a shirt she is making. one button is 1/8 inch, one is 3/8 inch, and one is 1/4 inch. Which button is smallest? Which is greatest?

The base of a triangle is one-third as long as its height. If the area of the triangle is 54 square meters, how long is its base?

Is 4 a prime or composite number or neither

Education helps individual citizens grow, and it B-builds a(n) _____________. A-strong country B-uneducated population C-weak country D-strong voter base

PLEASE I REALLY NEED HELP PLEASE HELP ME THANKS ! 1) Tyler needs to buy a book for school that cost $13. He also wants to get a book for each of his 2 sisters

Which of the following was the name for Roosevelt and Churchill's agreement to collective security, disarmament, freedom of the seas, and economic cooperation?

Graph the system below and write its solution. 3x+y=7 y=1/3x-3

a rectangular lawn is 45 feet long and 30 yards wide find the perimeter in feet then find the perimeter and yards

how do i solve 1/3 = ?/16?

After 1965, black civil rights leaders found it difficult to A. protest the Vietnam War. B. enforce the new laws in the South. C. now support Hispanic rights in