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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None of these.
$(A)$ Projection of $\overline{ OC }$ on $\overline{ OA }$ is $-\frac{3}{2}$
$(B)$ Area of the triangle $OAB$ is $\frac{9}{2}$
$(C)$ Area of the triangle $ABC$ is $\frac{9}{2}$
$(D)$ The acute angle between the diagonals of the parallelogram with adjacent sides $\overline{ OA }$ and $\overline{ OC }$ is $\frac{\pi}{3}$