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Cot x sec4x = cot x + 2 tan x + tan3x Is this equation or identity?

Samantha Barber

in Mathematics

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Zach Chandler on October 26, 2018

The correct answer is:An equation.Explanation:An equation is a statement that is true for certain values of the variable. An identity that, however, is a statement that is true for all values of the variable.If we use 60° x, the left-hand side of the equation gives -1.15. The right side gives us the 4.04. These are not the same, so this may not be an identity.


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