Question

Calculate 1 - 2 +3 - 4+5-6+ ...... + 179 - 180.​

Answer 1

Five times a number is added to find the Tell me a mathematical statement equating two countries is called and creation head of education are called the number of equation of degree 12 out series are called linear quadratic and cubic equation answer. name. What is your name?

Answer 2

S =   1 - 2 + 3 - 4 + 5 - 6 + ___ + 179 - 180

+   S =       1 - 2 + 3 -  4 + 5 - 6 + ___ + 179 - 180

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2S =           1 - 1 - 1 - 1 - 1 - 1 - 1 - 1 - ___ - 1 - 1 - 1 - 180

2S = -180

S =  $\frac{-180}{2}$

S = -90