tylerb0312
tylerb0312 tylerb0312
  • 01-01-2021
  • Mathematics
contestada

Given that cosA = -8/17  and sinA is negative, determine the value of tanA.​

Respuesta :

cwrw238 cwrw238
  • 01-01-2021

Answer:

tan A = -15/8.

Step-by-step explanation:

sin^2a = 1 - cos^2A

= 1 - (-8/17)^2

= 225/289

So sin A= 15/17

tan A = sin A / cos A

=  15/17 / -8/17

= 15/-8

= -15/8.

Answer Link

Otras preguntas

Find the measures of two supplementary angles m and n if m=6x+3 and n=2x-7
What is the oblique asymptote of the function f(x) x^2+x-2/x+1
why is it best to have a resting heart rate below 70 beats per minute
Can anyone help me out plz
under manorialism, who controlled land in europe? a. a lord b. the pope c. the parliament d. a serf
what is the radius of a circle in which a 30° arc is 2 inches long?
Tina's salsa class membership, which is $15, is deducted automatically from her bank account every month. Which expression shows the total deductions for the ye
the wind was blowing so hard that monica could hardly open the door. she had to pull with all her might to pry it open. she was blown inside, and the wind slamm
which are synonyms? a. farm/corn b. river/stream c. walk/talk d. house/garden
Which sentence is punctuated correctly? A. We used to live at 8725 Palomar Rd Princeton, NJ 08543. B. We used to live at 8725 Palomar Rd, Princeton NJ 08543