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If cosx= -1/2 for 90degrees<x<180degrees,
calculate cosx/sinx
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how to calculate If cosx= -1/2 for 90degrees<x<180degrees,
calculate cosx/sinx
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Simplify #3:
[cosx-sin(90-x)sinx]/[cosx-cos(180-x)tanx] = [cosx-(sin90cosx-cos90sinx)sinx]/[cosx-(cos180cosx+sinx180sinx)tanx] =
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cosx+1/2=1 cosx+1=2 cosx=2-1 cosx=1 therefore 1 solution? A)
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how do i simplify (secx - cosx) / sinx?
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