Please help?

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In a chapter of my book it is written that when l=-infinity then theta(angle)=0 and when l=+infinty then theta(angle)=pi.(here,l means length)
But i didn't understand why, when l=-l=-infinity then theta(angle)=0 and why ,when l=+infinty then theta(angle)=pi.
Please explain me the reasons.

2006-11-14 04:57:13 · 1 answers · asked by star123 2 in Science & Mathematics ➔ Mathematics

1 answers

Just what are l and theta? The length of what? The angle where?

2006-11-14 05:07:34 · answer #1 · answered by runningman022003 7 · 0⤊ 0⤋