Progressions

n ^th term of A.P is

• a + ( n-1 )d

• a r ^{n - 1}

• a - ( n+1 )d

• a r ^{n + 1}

If n ^th term of G.p is a_n = a r ^n-1

^{Here 'r ' represents}

• Common difference

• Common ratio

• Common radius

• Common term

What is the 10 ^th term in A.P

• a + 9d

• a + 10d

• a - 9d

• a - 10d

Which of the following is 7 ^th term in G.P

• a r ³

• a r ⁸

• a r ⁷

• a r ⁶

Find the common difference in the A.P is 7,15,23,31............

• 7

• -8

• 8

• -7

The sum of n terms in A.P is

• S_{n =} n/2 [ 2a + ( n-1 )d ]

• S_{n =} n/2 [ a + a_n ]

• S_{n =} n/2 [ a + L ]

• All the above

If a_{1 ,} a_{2 ,} a₃ ,............ are in G.P then the common ratio r =

• a₁ / a₂

• a_{2 /} a₁

• a₂ - a₁

• a₁ - a₂

Find the value of 'r' in the G.P 6,12,24,48,............

• 6

• 12

• 2

• 1

Find the value of 'd' in the A.P 30,24,18,12,.............

• 6

• -6

• 8

• -8

What is the common difference of the AP

2+√3 , 2+2√3, 2+3√3.........

• d = √3

• d = 2√3

• d = 2

• d = 2+√3