Answer:
Step-by-step explanation:
Evaluate cos(tan^-1 0)
We know that tan(0)=0
tan (0 degree)=0
Replace it in our problem
At 0 degree the cos value is 1
So co(0)=1
Complementary angles (add to 90°)
89°, 1°
78°, 12°
60°, 30°
45°, 45°
Supplementary angles (add to 180°)
179°, 1°
158°, 22°
135°, 45°
90°, 90°
Alright, so in order to find this, you will nee to use the Triangle Inequality Theorem.
We’ll make the values = to variables to make it easier. a=1 b=1 c=2
All of the inequities need to be true.
a+b>c
b+c>a
c+a>b
Now replace the variables.
1+1>2 2>2 (False)
1+2>1 3>1 (True)
1+2>1 3>1 (True)
Since one is false, 1,1, and 2 cannot make a triangle.
The answer is -100 (10*10)- (-10*-10) - (10*10)
S=3*9*2+0.5*(12+6)*8+3*12+6*3=54+72+36+18=180