CUSAT 2021 BTech Solved Paper Shift 2

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Question : 240 of 250

Marks: +1, -0

Which of the following is an even function?

f(x)=‌
ax+a−x
ax−a−x
f(x)=‌
ax+1
ax−1
f(x)=x(‌
ax−1
ax+1
)
f(x)=log2(x+√x2+1)

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