Answer: 
Step-by-step explanation:
As X is an acute angle, all 6 trigonometric functions with an argument of X are positive.
Using the identity
,

U,U you need to divide how many cards in total the subtract and mulitply them
Answer:
Triangle
Step-by-step explanation:
cross section through the cone perpendicular will be a triangle with the base of the cone's base diameter.
Answer:
=
Step-by-step explanation:
when using pemdas both sides are 0 so they are equal