hilby416 hilby416
  • 23-01-2024
  • Mathematics
contestada

If sₙ denotes the sum of first n terms of an A.P., whose common difference is d, then sₙ₋₂ sₙ₋₁ + sₙ₋₂ (n > 2) is equal to
A. 2d
B. - d
C. d
D. None of these

Respuesta :

Otras preguntas

My ______ from elementary school shows only one c grade. which choice correctly completes the sentence? A) Inscription B) Perspective C) Transcript D) Spectacl
Write a ratio in simplified form of the area of the shaded figure to the area of the figure that encloses it.
Who created the piece which sold for the highest price back in the 20th century
what is the answer for 8-4(m+5)=3(m-9)
How did the expansion of territory affect the roman empire??
What does holden say is his trouble with girls?
BRAINLIEST ANSWER! HELP ASAP! Which passage from "The Convict and the Bishop" is the best example of irony? A. He appeared ready either to cleave the bish
Find equation tangent to a circle at given point
Research that seeks to understand the nature or scope of a nation's criminal justice system is called:
All are physiological changes that occur with aging except: