A function whose graph is symmetrical about the y−axis is given by
f(x)=loge(x+√x2+1)
f(x+y)=f(x)+f(y)∀x,y∈R
None of these
f(x)=cosx+sinx
A
None of these
B
f(x+y)=f(x)+f(y)∀x,y∈R
C
f(x)=loge(x+√x2+1)
D
f(x)=cosx+sinx
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Solution
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A function which is even in nature has a graph symmetric about y axis.
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