Tan^2Z=7-2secZ

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Solution for Tan^2Z=7-2secZ equation: 


Simplifying
Tan2Z = 7 + -2secZ

Solving
an2TZ = 7 + -2cesZ

Solving for variable 'a'.

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

Divide each side by 'n2TZ'.
a = 7n-2T-1Z-1 + -2cen-2sT-1

Simplifying
a = 7n-2T-1Z-1 + -2cen-2sT-1

Reorder the terms:
a = -2cen-2sT-1 + 7n-2T-1Z-1

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