Mht CetFunctionsMHT CET 2026 15th April Morning ShiftMCQ+2 / -02026If $f(x-y) + f(x+y) = 2f(x)f(y)$ for all $x, y \in \mathbb{R}$, then $f(x)$ is .....Aan odd functionBan even functionCneither even nor odd functionDa periodic functionCheck AnswerClear SelectionReveal AnswerShow Explanation
