Which function is negative for the interval (–1, 1]?
2 answers:
⇒The Interval in which we have to find the function is Negative is (-1,1].
→(-1,1]=Semi closed or Semi Open Interval, Point -1, is not included in the set, but 1 is included in the set.
⇒ The meaning of negative here is,that either for positive or negative value of x , the value of f(x), that is y Should be negative.
⇒y is negative in third and fourth Quadrant.
Graph -(2), is the function , in which the function is negative for the interval (–1, 1].
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Answer:
sinθ = y/r sinθ =
cosθ = x/r cosθ =
tanθ = y/x tanθ =
cscθ = r/y cscθ =
secθ = r/x secθ =
cotθ = x/y cotθ =
explanation:
r =
r = 10
x = 8
y = -6
r =
r = 5
x = 4
y = 3