MCQ
$\int_{}^{} {{a^x}\;da = } $
- A$\frac{{{a^x}}}{{{{\log }_e}a}} + c$
- B${a^x}{\log _e}a + c$
- ✓$\frac{{{a^{x + 1}}}}{{x + 1}} + c$
- D$x{a^{x - 1}} + c$
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$2 x+y-z=3$
$x-y-z=\alpha$
$3 x+3 y+\beta z=3$
has infinitely many solution, then $\alpha+\beta-\alpha \beta$ is equal to .... .