Home
Class 11
MATHS
The value of 6^2 + 7^2 + 8^2 +…… + 20^2 ...

The value of `6^2 + 7^2 + 8^2 +…… + 20^2` is

A

a) 2815

B

b) 2615

C

c) 2715

D

d) 2915

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

Find the value of (i^6 + i^7 + i^8 + i^9) / (i^2 + i^3)

Find 5^2 + 6^2 + 7^2 + …. + 30^2

The value of (sin^2 20^@ + cos^4 20^@)/(sin^4 20^@+cos^2 20^@) is

Find the value of: 1+ i^2 + i^4 + i^6 + i^8 +............+ i^20

If a/b=7/3 then find the value of (2a^2+3b^2)/(2a^2-3b^2) .

The value of sin^2 (pi/8)+sin^2 ((3pi)/8)+sin^2 ((5pi)/8)+sin^2 ((7pi)/8) is

If the curves y^2=6x , 9x^2+by^2=16 intersect each other at right angles then the value of b is: (1) 6 (2) 7/2 (3) 4 (4) 9/2