$Q61)9^{\left | x+3 \right |}=\sqrt{9}^{-2x+1}$
$Q62)2^{2-4x} \sqrt{9}^{6x-3}=1$
$Q61)9^{\left | x+3 \right |}=\sqrt{9}^{-2x+1}$
$Q62)2^{2-4x} \sqrt{9}^{6x-3}=1$
; 11-30-2017 12:32 AM
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; 12-02-2017 02:11 PM
$Q63)solve .in. [0,2\pi ]:log_{sinx}cosx=1$
; 12-23-2017 12:10 AM
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ҡ
: -
\[\begin{array}{l}
1.\,\,\,0 < \cos x < 1\,\,\,\, \Rightarrow {D_1}: - \frac{\pi }{2} < x < \frac{\pi }{2}\,\,\,\,\,\,\, \\
2.\,\,\,0 < \sin x < 1\,\,\,\, \Rightarrow {D_2}:0 < x < \frac{\pi }{2}\,\,\,\,\,\,\,or\,\,\,\,\,\frac{\pi }{2} < x < \pi \\
{D_1} \cap \,{D_2} = \left\{ {x:0 < x < \frac{\pi }{2}} \right\} \\
\end{array}\]
$Q64)(26+15\sqrt{3})^{x}-5(7+4\sqrt{3})^{x}+6(2+\sqrt{3})^{x}+(2-\sqrt{3})^{x}=5$
$Q65)x^{2}-\frac{1}{2}=\sqrt{x+\frac{1}{2}}$
; 01-05-2018 12:12 AM
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$Q67)\left \lfloor x+y+4 \right \rfloor=18-y$
$\left \lfloor x+1 \right \rfloor+\left \lfloor y-1 \right \rfloor=18-x-y$
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