Hi everyone, i must deduce this inequality : from this one :

Thank you :)

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- September 3rd 2012, 05:13 AMGroundelevensinus and absolute value
Hi everyone, i must deduce this inequality : from this one :

Thank you :) - September 3rd 2012, 06:23 AMPlatoRe: sinus and absolute value
- September 3rd 2012, 06:30 AMHallsofIvyRe: sinus and absolute value
Plato, I read this in exactly the

**opposite**- the OP knows and must deduce |sin(a)\le |a|. Of course, the**definition**of |a| is "|a|= a if and if x< 0". That should be sufficient. - September 3rd 2012, 06:37 AMPlatoRe: sinus and absolute value