Asked by Andrea
Solve sinx+cosx=0
Thanks!
Thanks!
Answers
Answered by
bobpursley
sinx=-cosx
tanx=-1
x= arctan(-1)
tanx=-1
x= arctan(-1)
Answered by
Andrea
We're not supposed to find it using arctan. We have to get one side to be 2 factors that equal zero when multiplied.
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