sec^2x-8tanx-21=0

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Solution for sec^2x-8tanx-21=0 equation:


Simplifying
sec2x + -8tanx + -21 = 0

Reorder the terms:
-21 + -8antx + c2esx = 0

Solving
-21 + -8antx + c2esx = 0

Solving for variable 'a'.

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

Add '21' to each side of the equation.
-21 + -8antx + 21 + c2esx = 0 + 21

Reorder the terms:
-21 + 21 + -8antx + c2esx = 0 + 21

Combine like terms: -21 + 21 = 0
0 + -8antx + c2esx = 0 + 21
-8antx + c2esx = 0 + 21

Combine like terms: 0 + 21 = 21
-8antx + c2esx = 21

Add '-1c2esx' to each side of the equation.
-8antx + c2esx + -1c2esx = 21 + -1c2esx

Combine like terms: c2esx + -1c2esx = 0
-8antx + 0 = 21 + -1c2esx
-8antx = 21 + -1c2esx

Divide each side by '-8ntx'.
a = -2.625n-1t-1x-1 + 0.125c2en-1st-1

Simplifying
a = -2.625n-1t-1x-1 + 0.125c2en-1st-1

Reorder the terms:
a = 0.125c2en-1st-1 + -2.625n-1t-1x-1

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