1999 AHSME Problems/Problem 15

Let $x$ be a real number such that $\sec x \minus{} \tan x \equal{} 2$ (Error compiling LaTeX. Unknown error_msg). Then $\sec x \plus{} \tan x \equal{}$ (Error compiling LaTeX. Unknown error_msg)

$\textbf{(A)}\ 0.1 \qquad \textbf{(B)}\ 0.2 \qquad \textbf{(C)}\ 0.3 \qquad \textbf{(D)}\ 0.4 \qquad \textbf{(E)}\ 0.5$

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1999 AHSME Problems/Problem 15