(F/G)2-H; just simplify it.
Answer : 4
Explanation : the second triangle is dilated by 2 .
Answer:
Sin (4.25π)= 0.7071
Cos(4.25π)= 0.7071
Tan(4.25π)= 1
Step-by-step explanation:

Sin, Cos and Tan of 45º angle is the same with 1,2 or more circumferences.
So the result is the same for 45º angle.
So:

Y = (x-2)^2 + 2 will shift graph right 2 units .
Look it up or study they are not that hard