Solve the equation for all real values of x.
cosxtanx- 2 cos²x = -1
a * +25k
+27k, 75 +23k
5 + Zick
* + 2nk, *** + 211k
Please select the best answer from the choices provided
ОА
OB
oc
OD
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In the diagram of circle o, what is the measure of zabc?

Point s lies between points r and t on . if rt is 10 centimeters long, what is st? 2 centimeters 4 centimeters 6 centimeters 8 centimeters

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