+0  
 
0
137
1
avatar+389 

What is the value of sin(−θ)sin(−θ) ?

Hev123  May 30, 2018
 #1
avatar+92890 
+1

cos ( - θ)  = cos ( θ )  = 4/5

 

Since  tan θ  and cos θ   >  0 , θ must be a first quadrant angle

 

So....sin θ  =  3/5

 

So.....sin (- θ)  = -sin (θ)  =  -3/5

 

 

 

cool cool cool

CPhill  May 30, 2018

17 Online Users

avatar
avatar
avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.