Answer:
a)
b)
c)
d)
cos 330° = 1- 2 sin² (165°)
Step-by-step explanation:
<u><em>Step(i):-</em></u>
By using trigonometry formulas
a)
cos2∝ = 2 cos² ∝-1
cos∝ = 2 cos² ∝/2 -1
1+ cos∝ = 2 cos² ∝/2
b)
cos2∝ = 1- 2 sin² ∝
cos∝ = 1- 2 sin² ∝/2
<u><em>Step(i):-</em></u>
Given
we know that trigonometry formulas
1- cos∝ = 2 sin² ∝/2
Given
put ∝ = 315
multiply with ' 2 sin (∝/2) both numerator and denominator
Apply formulas
1- cos∝ = 2 sin² ∝/2
now we get
b)
put ∝ = 330° above formula
c )
put ∝ = 315° above formula
d)
cos∝ = 1- 2 sin² ∝/2
put ∝ = 330°
cos 330° = 1- 2 sin² (165°)
<span>0.1428571428 would be the correct answer</span>
2/3 is bigger than 1/3......TO CHECK this answer 2/3=66% or .66 and 1/3=33% or .33
Therefore, 2/3(66%) is greater than 1/3(33%)
2/3>1/3
Answer:
c
Step-by-step explanation:
sepse nuk me intereson se ca thua ti jevg dreqi i cmen
Answer:
C; A singleton set
Step-by-step explanation:
Mathematically, when a number is non-negative; it is either positive or zero
Now, this is because 0 identifies as neither a positive or a negative number
hence, when we find the difference between the two sets, the only number that stands out unmatched is the value 0
What this mean is that we are having a set with a single number result
So we have our answer as {0}
Which is a singleton set