FunctionHard
Question
If f(x) = cos 
x + sin 
x, where [.] denotes the greatest integer function, then which of the following is not correct
x + sin x, where [.] denotes the greatest integer function, then which of the following is not correct Options
A.f(0) = 1
B.
C.
= 0
= 0D.f(π) = 0
Solution
f(x) = cos 
x + sin 
x ; 
≅ 4.9
f(x) = cos 4x - sin 5x
f(0) = 1
f
= cos 
- sin 
= 0
f(π) = 1
x + sin x ; ≅ 4.9f(x) = cos 4x - sin 5x
f(0) = 1
f
= cos - sin = 0f(π) = 1
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