Number of roots of the equation 4cos(e^x)=2^x+2^-x is A)0. B)1. C)2. D) infinite

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Kumar · Answer

Draw the graph of this function and it is cut the x-axis infinite times so that the roots are infinite.

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Number of roots of the equation 4cos(e^x)=2^x+2^-x is A)0. B)1. C)2. D) infinite

Number of roots of the equation 4cos(e^x)=2^x+2^-x is
A)0. B)1. C)2. D) infinite

1 Answers

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Number of roots of the equation 4cos(e^x)=2^x+2^-x is A)0. B)1. C)2. D) infinite

Number of roots of the equation 4cos(e^x)=2^x+2^-x isA)0. B)1. C)2. D) infinite

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Number of roots of the equation 4cos(e^x)=2^x+2^-x is
A)0. B)1. C)2. D) infinite