haya9
haya9 haya9
  • 22-11-2021
  • Mathematics
contestada

help me with this guys

help me with this guys class=

Respuesta :

LammettHash
LammettHash LammettHash
  • 22-11-2021

Let y = cos⁻¹(x), so that cos(y) = x.

For some angle y between 0 and π, cos(y) takes on some value between -1 and 1.

For the y in this range, we have cos(y) = -1/2 exactly when y = 2π/3.

Then

tan(cos⁻¹(-1/2)) = tan(2π/3) = sin(2π/3)/cos(2π/3) = (√3/2)/(-1/2) = -√3

Answer Link

Otras preguntas

which enlightenment idea influenced the founding fathers​
why charles babbage is known as father of computer science ​
Ellie has $53.39 automatically deducted from her bank account each month for her gym membership. What is the overall change in her bank account after 6 months?
Based on the "Equal Pay Bill" letter, where does the author think women belong? A. In the same jobs as men B. In government, making laws about equality C. At ho
A golfer earned the following scores over several rounds of golf: −3, 2, 0, −1, 2, −4. Jamar says these numbers can all be described as integers, while Sophia s
Has anybody ever read the divergent books?
i need this answered pls ASAP
Does suffering make us stronger or lead us to success? 2 paragraph
(FREE BRAINLIEST) The difference of two numbers is 4 and their sum is 14. What is their product?
Find the length of WT if W (-3,0) and T (3,-1). If a decimal round to the hundredth place.