Answer:
elon musk
Step-by-step explanation:
elon sends out random, uncalled for tweets, which mess with the stock value.
For example, when the stock was very high, he tweeted,"Tesla stock too high"
Sine squared x + cos squared x is equal to 1
3 1/2 divided by 2 1/4 = 1.55555556
1.55555556 Rounded is 1.55