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The number of real solutions of the equation sin e^x=5^x+5^-x is (ans 0)

The number of real solutions of the equation sin e^x=5^x+5^-x is (ans 0)

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2 Answers

Prudhvi teja
83 Points
12 years ago

Dear sudha

5x+5-x has minimum value of 2 because we know that x+1/x has min value 2 if x is positive

You can get this by using (x - 1/x)2 > 0

sinx max value is 1

so there cant be any solutions

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sudha
6 Points
12 years ago

pls help me sove

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