Question

Find the value of 99−97+95−93+...+7−5+3−1.

Answer 1

Ans=zero

Step-by-step explanation:

Ithink so it should be zero

Answer 2

Answer:

Step-by-step explanation:

99-97 = 2

95-93 = 2

91-89 = 2

we see a pattern here of 2's so, we can rewrite the question as 2 + 2 + 2 + 2... times n.

n = (highest value + lowest value) / 2

  = (99+1)/2 = 100/2 = 50

so, answer is 2 x 50 = 100

I think...