Functions Part 1
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Question : 67 of 100
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Let f ( x ) = a x ( a > 0 ) be written as f ( x ) = f 1 ( x ) + f 2 ( x ) , where f 1 ( x ) is an even function and f 2 ( x ) is an odd function. Then f 1 ( x + y ) + f 1 ( x − y ) equals:
[8 Apr 2019 Shift 2]
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