Practice Activity - Sharp EL-W535B Operation Manual

NAME ___________________________________________ DATE________________
INVERSE TRIGONMETRIC FUNCTIONS
Use your EL-W535B and the law of sines and the law of cosines to find
the missing angle.
The law of sines is
The law of cosines is
1. Given
2. Given
3. Given
4. Given
5. Given
a b

 
sin sin
 
2 2
c a

   
a , 2 b , 7 23
find
___________________
   
a 34 , c 21 , 94
___________________
  
a , 3 b , 4 c 5
find
___________________
  
a 40 , b 24 , c 17
___________________
  
a , 5 b 12 , c 13
find
___________________
22
c

.

sin
 
2
b 2 ab cos
.

in grads.

grads, find in radians.

in degrees.

find in radians

in degrees.