Day 66: NDA Maths

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

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1. A.
   $\dfrac{11}{20}$
2. B.
   $\dfrac{7}{12}$
3. C.
   -
4. D.
   $1$

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1. A.
   $\dfrac{1}{6}$
2. B.
   $\dfrac{1}{36}$
3. C.
   $\dfrac{1}{12}$
4. D.
   $\dfrac{5}{12}$

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1. A.
   The triangle is equilateral
2. B.
   The triangle is isosceles but not right-angled
3. C.
   The triangle is right-angled
4. D.
   The triangle is right-angled isosceles

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1. A.
   The first term is equal to the common difference
2. B.
   The first term is equal to twice the common difference
3. C.
   The common difference is equal to twice the first term
4. D.
   The first term is equal to square of the common difference

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