solve for x: cosx+sinx=0 , on the interval [0,π]?

hi there, I need a not too long way to find the angles on which cosx+sinx=0

2007-03-17 17:08:29 · 2 answers · asked by r4ven13 1 in Science & Mathematics ➔ Mathematics

cosx=-sinx
tanx=-1
x= 3PI/4

2007-03-17 17:14:27 · answer #1 · answered by Rob M 4 · 2⤊ 0⤋

what math are you taking?

2007-03-18 00:11:46 · answer #2 · answered by JennyRocks_PaperScissor 2 · 0⤊ 0⤋

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