Answer:
x^4
Explanation:
Breakdown x^4 = <u>x</u> · <u>x</u> · <u>x</u> · <u>x</u>
Breakdown x^5 = <u>x</u> · <u>x</u> · <u>x</u> · <u>x</u> · x
Here the common factor is x · x · x · x = x^4
Hence, the greatest common factor of x^4 and x^5 is x^4.
Function means no x value repepetes with a differnt y value
(x,y)
first numbers never repeat
first one, the x values repeat
2nd, x values rpeat
3rd, no repeat
4th, -3 repeats
answer is 3rd option
Solution:
As we know reference angle is smallest angle between terminal side and X axis.
As cosine 45 ° is always positive in first and fourth quadrant.
i.e CosФ, Cos (-Ф) or Cos(2π - Ф) have same value.
As, Cos 45°, Cos (-45°) or Cos ( 360° - 45°)= Cos 315°are same.
So, Angles that share the same Cosine value as Cos 45° have same terminal sides will be in Quadrant IV having value Either Cos (-45°) or Cos (315°).
Also, Cos 45° = Sin 45° or Sin 135° i.e terminal side in first Quadrant or second Quadrant.