1. A
   1 only
2. B
   2 only
3. C
   Both 1 and 2
4. D
   Neither 1 nor 2

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1. A
   0°
2. B
   30°
3. C
   45°
4. D
   60°

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1. A
   $2x + y = 0$
2. B
   $2x - y = 0$
3. C
   $x + 2y = 0$
4. D
   $x - 2y = 0$

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1. A
   $\frac{3}{2}$
2. B
   $\frac{5}{2}$
3. C
   $\frac{\sqrt{11}}{2}$
4. D
   $\frac{\sqrt{13}}{2}$

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1. A
   1 and 2 only
2. B
   2 and 3 only
3. C
   1 and 3 only
4. D
   1, 2 and 3

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1. A
   $\frac{\pi}{6}$
2. B
   $\frac{\pi}{4}$
3. C
   $\frac{\pi}{3}$
4. D
   $\frac{\pi}{2}$

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1. A
   1
2. B
   $\frac{11}{27}$
3. C
   $\frac{13}{27}$
4. D
   4

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1. A
   5
2. B
   4
3. C
   3
4. D
   2

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1. A
   Zero
2. B
   One
3. C
   Two
4. D
   Infinite

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1. A
   $(0,1,2)$
2. B
   $(0,0,3)$
3. C
   $(1,1,1)$
4. D
   $(-1,1,3)$

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1. A
   $\frac{1}{2}, \frac{1}{2}$
2. B
   $\frac{1}{\sqrt{2}}, \frac{1}{\sqrt{2}}$
3. C
   $\sqrt{2}, \sqrt{2}$
4. D
   2, 2

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1. A
   1 only
2. B
   2 only
3. C
   Both 1 and 2
4. D
   Neither 1 nor 2

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1. A
   $\vec{a}$ and $\vec{b}$ must be unit vectors.
2. B
   $\vec{a}$ must be parallel to $\vec{b}$.
3. C
   $\vec{a}$ must be perpendicular to $\vec{b}$.
4. D
   $\vec{a}$ must be equal to $\vec{b}$.

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1. A
   114
2. B
   66
3. C
   0
4. D
   -66

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1. A
   1 and 2 only
2. B
   2 and 3 only
3. C
   1 and 3 only
4. D
   1, 2 and 3

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1. A
   -1
2. B
   0
3. C
   1
4. D
   2

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1. A
   $\ln 24$
2. B
   $\ln 5$
3. C
   $2\ln 5$
4. D
   $2\ln 4$

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1. A
   $a$
2. B
   $2a$
3. C
   0
4. D
   $\frac{a}{2}$

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1. A
   0
2. B
   1
3. C
   2
4. D
   3

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1. A
   $f(x)$
2. B
   $f(-x)+f(x)$
3. C
   $-f(x)$
4. D
   None of the above

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1. A
   $16\pi$ square units
2. B
   $8\pi$ square units
3. C
   $4\pi$ square units
4. D
   $2\pi$ square units

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1. A
   $x=-1$
2. B
   $x=0$
3. C
   $x=1$
4. D
   $x=2$

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1. A
   $4\sqrt{3}$ cm
2. B
   $2\sqrt{3}$ cm
3. C
   6 cm
4. D
   3 cm

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1. A
   $f'(0)=1$
2. B
   $f'(0)=-1$
3. C
   $f'(0)=0$
4. D
   $f'(0)$ does not exist

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1. A
   $\ln(\sec x)+\ln|\sec x+\tan x|+c$
2. B
   $\ln(\sec x)-\ln|\sec x+\tan x|+c$
3. C
   $\sec x\tan x-\ln|\sec x-\tan x|+c$
4. D
   $\ln|\sec x+\tan x|-\ln|\sec x|+c$

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