1. 2
2. 3
3. 4
4. 15
3
1. (3n-4)2n+1
2. (3n-4) 2n-1+2
3. (3n-4)2n-1-2
4. none of these
none of these
1. 14! a7b7
2. (14!/7!) a7b7
3. [14!/(7!)2] a7b7
4. [14!/(7!)3] a7b7
[14!/(7!)<sup>3</sup>] a<sup>7</sup>b<sup>7</sup>
1. 14
2. 12
3. 7
4. 18
7
1. [2√2-(1+√3)]/[√3-1]
2. (1+√3)/1√3
3. (1/√3)+√3
4. none of these
(1/√3)+√3
1. 0
2. (√3-1)/ √2
3. (1+√3)/ 2√2
4. (1+√2)/ √2
0
1. 0
2. 1
3. 2
4. none of these
1
1. 0
2. 1
3. 2
4. 3
0
1. 450
2. 600
3. 900
4. none of these
90<sup>0</sup>
1. 4
2. 2
3. 14
4. none of these
4