Answer:
Step-by-step explanation:
96
Answer:
x^6-9 = x^-3 = 1/x^2
Step-by-step explanation:
I’m a little confused by the question and the problem, is there a picture of the problem you could add?
Answer:
cos(45°) = (√2)/2
Step-by-step explanation:
The cosine of 45° is the x-coordinate of the point on the unit circle where the line y=x intersects it. That is, it is the positive solution to the equation ...
x^2 +x^2 = 1
x^2 = 1/2 = 2/4 . . . . . collect terms, divide by 2, express the fraction with a square denominator
x = √(2/4) . . . . . . take the square root
x = (√2)/2 . . . . . simplify
The cosine of 45° is (√2)/2.
Answer:b
Step-by-step explanation:b