heres a key for then
SIN= O/H
COS= A/H
TAN= O/A
CSC= H/O
SEC= H/A
COT= A/O
let me know if u have anymore questions
Answer:
3/5 is ur answer
Step-by-step explanation:
ok so its SIN
SIN is o/h (o= opposite and h= hypotenuse)
so we can look at the picture and it says find the SIN of a
ok so the O would be 3 and the H would be 5
so ur answer would be 3/5
The answer is -1.
First, distribute the negative inside the parenthesis of 1/2.
Next, turn all the denominators into 6 by multiplying by 3 or 2.
-1/2 + 2/3 + -1 1/6
Changes to -3/6 + 4/6 - 1 1/6
-3/6 + 4/6 = 1/6
1/6 - 1 1/6 = -1
Answer:
Integers and polynomials are both <u>closed </u>under addition, subtraction, and multiplication; however, operations on polynomials <u>can sometimes be open </u>while operations on integers <u>produce irrational results
</u>.
Step-by-step explanation:
Closed means that addition, subtraction, and multiplication of integers gives as result a new integer; and addition, subtraction, and multiplication of polynomials gives as result a new polynomial.
Operations on polynomials can sometimes be open, like in division.
Operations on integers can produce irrational results
, for example, dividing 11 by 9.
Domain: Set of all real numbersIf you want to express the domain in set-builder notation, then you'd write something like

which is fancy notation to basically say "x is any real number"
If you want to write the domain in interval notation, then you'd write

which is the interval from negative infinity to positive infinity. In other words, the entire real number line.
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The domain is the set of all real numbers because we don't have any restrictions to worry about. There are no division by zero errors. There are no cases where we have to worry about taking the square root of a negative number, or anything similar. Any number can replace x to generate an output for y.