- Simplify cos(sin^-1 x)?

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Where the need of electronics came from? Hello
I am getting a above ground pool that list 18 feet in diameter... is this 18 feet from one side to the other? Find the center and radius of the circle defined by the equation x^2+y^2-6x+2y-6=0.? Suppose that 273g of the substances listed above displaces 26ml of water. What is the substance? Three cards are dealt. What is the probability that the last two are hearts.?