Answer:
B. csc²(x)
Step-by-step explanation:
You can use the relations ...
sec(x) = 1/cos(x)
csc(x) = 1/sin(x)
cot(x) = cos(x)/sin(x)
to replace the functions in your expression. Then you have ...
sec²(x)·cot²(x) = (1/cos(x)·cos(x)/sin(x))² = (1/sin(x))² = csc²(x)
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Alternate solution
You can also use the relation
cot(x) = csc(x)/sec(x)
Then ...
(sec(x)·cot(x))² = (sec(x)·csc(x)/sec(x))² = csc²(x)
It would take Brad five months with adding $25 every month with a starting value of $75 in his bank account to save at least $200
Answer:
2a^2 + 2b^2
Step-by-step explanation:
you can find the and by Pythagorean theorem
Answer:
A
Step-by-step explanation:
The equation reads "three is less than f," meaning any number greater than 3 satisfies the equation. Since there are an infinite amount of numbers, there are infinite solutions.