Question 1078821
<pre>
{{{tan^2(x) = expr(3/2)sec^2(x)}}}

{{{tan^2(x) = expr(3/2)(1+tan^2(x)^"")}}}

Multiply both sides by 2

{{{2tan^2(x) = 3(1+tan^2(x)^"")}}}

{{{2tan^2(x) = 3+3tan^2(x)}}}

{{{-3 = 3tan^2(x)}}}

{{{-1 = tan^2(x)}}}

If you take square roots of both sides, what can you 
say about the solution(s)?

Edwin</pre>