Question

The value of the expression 1-6+2-7+3-8+... to the 100 terms​

Answer 1

Answer:

$\red {Value \: of \: the \: expression}\green {= -250}$

Step-by-step explanation:

$Value \: of \: the \: expression \\1-6+2-7+3-8+\cdot\cdot\cdot \:to \:the \:100\:terms$

$= (1-6)+(2-7)+(3-8)+\cdot\cdot\cdot (50 \:pairs )$

$= -5 - 5 - 5 -\cdot \cdot \cdot 50 \:terms$

$= (-5) \times 50 \\= - 250$

Therefore.,

$\red {Value \: of \: the \: expression}\green {= -250}$

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Answer 2

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