Answer:
The 147th letter will be c.
Step-by-step explanation:
When you divide 147 by 4, if the remainder is 0, it's d, if it's 1, it's a, if it's 2, it's b, and if it's 3, it's c.
Answer: 17.9
Step-by-step explanation:
Answer:
(10,-3)
Step-by-step explanation:
Answer:729
Step-by-step explanation:
81^3/2
(3^4)^3/2
3^6
729
When we use arcsine, we are finding the angle while giving the trigonometric ratio.
Arcsin(u) = theta can be rewritten as:
sin(theta) = u
Sine is opposite over hypotenuse, so u/1 means that the side opposite to theta (the y value) is u, and the hypotenuse is 1.
We can use Pythagorean Theorem to find the adjacent (x value).
1^2 - u^2 = x^2
x = sqrt(1-u^2)
Back to the original question, we are trying to find cos(arcsin(u)). We just solved all the sides for our triangle using arcsin(u). Now we need to do cos(u).
Cosine is adjacent over hypotenuse.
So our answer is sqrt(1-u^2)/1
Or just sqrt(1-u^2)
