Question

Find the Sum of the first 10 terms of the AP if the first term is 0 and the common difference is 5



please give correct answer ​

Answer 1

Step-by-step explanation:

Given,

First term(a) = 0

Common difference (d) = 5

To Find :-.

Sum of first 10 terms of an A.P

Formula Required :

Sum of first 'n' terms of an A.P :-

Sₙ = n/2[2a + (n - 1) d]

Solution :-

a = 0 , d = 5 , n = 10 :-

S₁₀= 10/2[2(0) + (10 - 1)(5) ]

S₁₀ = 5[ 0 + 9(5)]

S₁₀ = 5[45]

= 225

Sum of first 10 terms of an A.P = 225

Answer 2

Answer:

225

Explanation:

According to the question

First term (a1)=0

Difference (d)=5

In AP ,

d = second term(a2) -first term (a1)

Therefore

5= a2 -a1

5=a2-0

a2=5+0

=5

similarly,

d=a3-a2

5=a3-5

a3=5+5

=10

In that way we got first 10 terms are-

0,5,10,15,20,25,30,35,40,45

If we add all these terms

0+5+10+15+20+25+30+35+40+45=225

I hope this will help you!

Thank u