C mplete set of solution of \( \log _{1 / 3}\left(2^{x+2}-4^{x}\rig...
C mplete set of solution of \( \log _{1 / 3}\left(2^{x+2}-4^{x}\right) \geq-2 \) is :
\( \mathrm{P} \)
(a) \( (-\infty, 2) \)
(b) \( (-\infty, 2+\sqrt{13}) \)
(c) \( (2, \infty) \)
(d) None of these
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