MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

⇐ BackProceed to Checkout ⇒
There are no items in this cart.
Continue Shopping
Menu
Grade: 12 
        
The fourth term of an AP is 4. Then the sum of the first 7 terms is
5 years ago

Answers : (1)

bharat bajaj
IIT Delhi
askIITians Faculty
122 Points 
							
t4= 4

a + 3d = 4

S7= 3.5 x [2a + 6d]

S7= 7 (2)(a+3d) = 7(2)(4)

S7= 28
Thanks & Regards
Bharat Bajaj
askiitian faculty
IIT Delhi
5 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

Other Related Questions on Algebra

Please help me ….. …................................................... Answer & Earn Cool Goodies
Find all the numbers ‘a’ for which any root of the equation Sin 3x = a sin x + (4-2|a|) sin2 x is a... Answer & Earn Cool Goodies
Question no 14 in attached image. Please help F(x)=1-cosx/sinx ,g(x)=sinx/1+cosx ,then (f*g)x
An ellipse having foci at (3,3) &(-4,4) &passing through the origin has eccentricity equql to
In the equation ||x|-4| By graph
View all Questions »


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 101 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers To Win!!! Click Here for details