+0  
 
0
82
1
avatar

If tan theta=\(3/4\) and theta is an acute angle, find cos theta

 Apr 14, 2022

Best Answer 

 #1
avatar+578 
+2

 

SOHCAHTOA  for reference

 

Tan(theta) = 3/4

 

opposite/adjacent = 3/4

 

That means the opposite side is 3 and the adjacent side is 4

 

Using the Pythagorean Theorem

 

c = sqrt(3^2 + 4^2)

c = 5

 

cosine(theta): adjacent/hypotenuse

cosine(theta): 4/5

 

-Vinculum

 

smileysmileysmiley

 Apr 14, 2022
 #1
avatar+578 
+2
Best Answer

 

SOHCAHTOA  for reference

 

Tan(theta) = 3/4

 

opposite/adjacent = 3/4

 

That means the opposite side is 3 and the adjacent side is 4

 

Using the Pythagorean Theorem

 

c = sqrt(3^2 + 4^2)

c = 5

 

cosine(theta): adjacent/hypotenuse

cosine(theta): 4/5

 

-Vinculum

 

smileysmileysmiley

Vinculum Apr 14, 2022

9 Online Users

avatar