Day 361: NDA Maths

1. A.
   80%
2. B.
   20%
3. C.
   64%
4. D.
   36%

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1. A.
   $\frac{c-b}{a-c}$
2. B.
   $\frac{a-c}{c-b}$
3. C.
   $\frac{c-a}{c-b}$
4. D.
   $\frac{c-b}{c-a}$

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1. A.
   $\sin^2 y$
2. B.
   $\cos^2 y$
3. C.
   $\tan^2 y$
4. D.
   $\cot^2 y$

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1. A.
   $\frac{(b-c)(b-d)}{(a-d)(a-c)}$
2. B.
   $\frac{(a-d)(c-a)}{(b-c)(d-b)}$
3. C.
   $\frac{(d-a)(c-a)}{(b-c)(d-b)}$
4. D.
   $\frac{(b-c)(b-d)}{(c-a)(a-d)}$

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1. A.
   $|\vec{A}|>|\vec{B}|>|\vec{C}|$
2. B.
   $|\vec{A}|=|\vec{B}|\neq|\vec{C}|$
3. C.
   $|\vec{A}|=|\vec{B}|=|\vec{C}|$
4. D.
   $|\vec{A}|\neq|\vec{B}|\neq|\vec{C}|$

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1. A.
   $f'(x) = 2x$ for $0 < x \leq 1$
2. B.
   $f'(x) = -2x$ for $0 < x \leq 1$
3. C.
   $f'(x) = -2x$ for $0 < x < 1$
4. D.
   $f'(x) = 0$ for $0 < x < \infty$

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1. A.
   $5x^{2} - 2x + 5$
2. B.
   $3x^{2} - 2x - 5$
3. C.
   $3x^{2} - 2x + 5$
4. D.
   $3x^{2} - 10x + 5$

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