Answer:
135° and 225°
Step-by-step explanation:
basically you want to find the value of x between 0 and 360 in this equation
cos x/2 = -(√2)/2
assume x/2 as n, so
cos n = -(√2)/2
n = 45°
then remember the quadrant system
0-90 1st quadrant, all is POSITIVE
90-180 2nd quadrant, only SIN has positive value
180 - 270 3rd quadrant, only TAN has positive value
270 -360 4th quadrant, only COS positive here.
so if you try to find negative value look into 2nd and 3rd quadrant that related 45° to x-axis (0°or 180°)
so the value of x is
180 - 45 = 135° (2nd quadrant) and
180 + 45° = 225° (3rd quadrant)
Answer:
12m -15
Step-by-step explanation:
Distribute
3(4m-5)
3*4m -3*5
12m -15
Answer:
x = 1/3 x=0
Step-by-step explanation:
y=6x-2
2=6x
2/6 = x
1/3=x
y=5x
5x=0
divide both sides by 5
0/5 = 0
51 Divide what's in the ( ) then add the 3
Well, i think you just need to move the 2 matches on the top and the bottom of the number 0 and put it after the number 8
This way, you will change the number from
5 0 8
into
5 1 1 8 1 1
hope this helps
