Asked by Alexa
How many values of x satisfy the equation: sinx=x^2/(625π^2 )?
Answers
Answered by
Steve
Since sinx is always less than 1, you need to find where
x^2/625 >= 1
There will be no solutions past that. Looks like you don't need to look beyond x=25. So, how many periods does sinx have in that domain?
Looks like 4, positive and negative, so I expect there are 15 or 16 solutions. Check near x = ±25
x^2/625 >= 1
There will be no solutions past that. Looks like you don't need to look beyond x=25. So, how many periods does sinx have in that domain?
Looks like 4, positive and negative, so I expect there are 15 or 16 solutions. Check near x = ±25
Answered by
Anonymous
34
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