Board Thread:Off-Topic Posts/@comment-32576568-20190405202604/@comment-28278669-20190416171520

Raven1207 wrote: Oslonicl wrote: 3

(2 + 2) x 439865496546747580965865098765908765098760598705867065870658706587080587065870658706587065870658706587065 = y

What is 7 + y?

(2 + 2) x 439865496546747580965865098765908765098760598705867065870658706587080587065870658706587065870658706587065 + 7

X^4-X^2-2x-1=0

Solve for all values of X(both real and non-real)

X = 0.5 + (sqrt 5)/2, - (cube root of -1), (-1)^(-2/3)

In triangle ABC, ∠B is 90 degrees, BC=16, and AC=20. Triangle DEF is similar to triangle ABC, where vertices D, E, and F correspond to vertices A, B, C, respectively, and each side of triangle DEF is 1/3 the length of corresponding side of triangle ABC. What is the value of sin F?