Question-1

Question-2 exercise- 2.1

Question-2 exercise- 2.1

Write the first five terms of each of the sequences in Questions 1 to 6 whose nth terms are : a_(n)=(-1)^(n-1).5^(n+1)

Answer questions 1, 2 and 3 by appropriately matching the information given in the three columns of the following table.

In an examination a student has to answer 4 questions out of 5 questions; questions 1 and 2 are however compulsory. Determine the number f ways n which the student can make the choice.

Write the first five terms of each of the sequences in Questions 1 to 6 whose nth terms are : a_(n)=(n)/(n+1)

Write the first five terms of each of the sequences in Questions 1 to 6 whose nth terms are : a_(n)=n.(n^(2)+5)/(4)

Write the first five terms of each of the sequences in Questions 1 to 6 whose nth terms are : a_(n)=(2n-3)/(6)

Using the property of determinants and without expanding in questions 1 to 7 prove that , |{:(x,a,x+a),(y,b,y+b),(z,c,z+c):}|=0

Write the first five terms of each of the sequences in Questions 1 to 6 whose nth terms are : a_(n)=n(n+2)