Day 285: NDA Maths

1. A.
   1
2. B.
   2
3. C.
   $n$
4. D.
   $2n$

Tap an option to check your answer.

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

Tap an option to check your answer.

1. A.
   $1$
2. B.
   $4$
3. C.
   $81$
4. D.
   $121$

Tap an option to check your answer.

1. A.
   $y^2=3x$
2. B.
   $x^2=12y$
3. C.
   $y^2-12x$
4. D.
   REVIEW: option C should be $y^2=-12x$

Tap an option to check your answer.

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

Tap an option to check your answer.