How is domain of the function f(x)=cosx restricted so that its inverse function exists?
1 answer:
Answer:
see below
Step-by-step explanation:
The largest interval for x ≥ 0 where cos(x) passes the horizontal line test is [0, π]. Hence the domain must be restricted to that interval if the function is to have an inverse that gives values in the range [0, π].
The domain of the function is the same as the range of the inverse function. Restricting the cos(x) function domain to x ∈ [0, π] restricts the range (functional values) of the inverse function to the same interval.
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Answer:
Option A.
Step-by-step explanation:
The given sequence is
24, 30, 36, 42, 48, ...
It is an AP. Here,
First term = 24
Common difference = 30-24 = 6
The given explicit formula for nth term is
where, is first term, d is common difference.
Substitute in the above formula.
The 500th term of the sequence is 3018.
Therefore, the correct option is A.