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If f(x)=cos[π2]x+cos[−π2]x, where [x] denotes the greatest integer less than or equal to x, then write the value of f(π). |
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Answer» If f(x)=cos[π2]x+cos[−π2]x, where [x] denotes the greatest integer less than or equal to x, then write the value of f(π). |
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