1. (1 + 2n) / n!
2. (-1)n.(1 + 2n) / n!
3. (-1)n.(1 - 2n) / n!
4. (-1)n.(1+4n) / n!
(-1)<sup>n</sup>.(1 - 2n) / n!
1. IR -{0}
2. IR - {0,1,3}
3. IR - {0, -1, -3}
4. IR - {0,-1,-3, +1/2 }
IR - {0, -1, -3}
1. n3 + n2 +1
2. n3 - n2 +1
3. n3 - n2
4. n3 + n2
n<sup>3</sup><sub> </sub>- n<sup>2</sup> +1<br>
1. 324
2. 396
3. 496
4. 512
496
1. p3 + 3p2
2. (p3 + p) /2
3. p2(5p-3) /2
4. p2(4p -3)
p<sup>2</sup>(5p-3) /2
1. 12C6
2. 12C6 + 2
3. 12C6 + 4
4. 12C6 + 6
<sup>12</sup>C<sub>6 </sub>+ 2
1. y+(y2/2)+(y3/3)+...
2. y-(y2/2)+(y3/3)-(y4/4)+...
3. y+(y2/2!)+(y3/3!)+...
4. y-(y2/2!)+(y3/3!)-(y4/4!)+...
y+(y2/2!)+(y3/3!)+...
1. (32+31x)/64
2. (31+32x)/64
3. (31-32x)/64
4. (1-2x)/64
(32+31x)/64
1. 2
2. 1
3. 0
4. -1/2
-1/2
1. xε(-3/2,1/4)
2. x є ( -3/2 , 1/4]
3. x є [ -3/2, 1/4)
4. x < 1/4
xε(-3/2,1/4)