Sinx=0.9
arcsin0.9=x
cos(arcsin0.9)=0.436
Answer:
Its not an example of an even number?
Step-by-step explanation:
Kind of an odd question, but i think its right. ;)
Im pretty sure it would be 7x^2−4x+7
Hope this helps best of luck im terribly sorry if its wrong
~Animaljamissofab ♥