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Which statements are true? Select all that apply.
A. tangent squared theta equals 1 minus secant squared theta
B. cosine theta equals Start Fraction cotangent theta over cosecant theta End Fraction
C. Start Fraction 1 over secant squared theta End Fraction equals sine squared theta plus 1
D. secant squared theta minus 1 equals Start Fraction 1 over cotangent squared theta End Fraction
E. sin θ csc θ = tan θ
Sagot :
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