tan^2x-1=0

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Solution for tan^2x-1=0 equation: 


Simplifying
tan2x + -1 = 0

Reorder the terms:
-1 + an2tx = 0

Solving
-1 + an2tx = 0

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '1' to each side of the equation.
-1 + 1 + an2tx = 0 + 1

Combine like terms: -1 + 1 = 0
0 + an2tx = 0 + 1
an2tx = 0 + 1

Combine like terms: 0 + 1 = 1
an2tx = 1

Divide each side by 'n2tx'.
a = n-2t-1x-1

Simplifying
a = n-2t-1x-1

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