Math, asked by manjuladl5977, 10 months ago

if an=(-1)n, then the correct relation between the sum of terms is

Answers

Answered by rani49035

9

Answer:

an=(-1)n

Sn = n/2 (2a + (n-1)d)

Sn = n/2 (a + an)

Sn = n/2 (a -n)

hope this will help you

Previous Question

Next Question

Similar questions

Math, 5 months ago

Find the difference between 3³ and 4³.

Psychology, 5 months ago

Kho-Kho is an example of……….. 2 points [a] Speed [b] Flexibility [c] Co-ordinative ability [d] Strength ...

Social Sciences, 5 months ago

3. under transient wind load the lateral Sway at the top of Rcc structure shall not exceed...

Science, 10 months ago

difference between dcirect current and alternatic current...

Physics, 10 months ago

What is the definition of refractive index? Type only if u know the answer The best answer would be marked as the BRANLIEST. IRRELEVANT answers would b REPORTED ...

English, 1 year ago

seeing of poem by Eugene field summary...

Social Sciences, 1 year ago

refer to the internet and see the earth is zoning map of India not a political map of India and drop earthquake zones on that Map map clearly demarcating different zoned...

Biology, 1 year ago

how can we save forest.