Question

Write the sign of each of the following products.
(a) 56 (-578) * (-312) * (-726) * (-87) * 163
(b)(-16) (-947) * (-86) × 91 × (-18) × (-6) x 75
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Answer 1

Given: Two expressions.

To find: The sign of their product.

Solution:

• Now we have given the expression:

          (a) 56 (-578) * (-312) * (-726) * (-87) * 163

• Multiplying them, we get:

           +103,971,410,839,296

         Here the sign is positive as four times, that is even times of (-) is (+).

          (b)(-16) (-947) * (-86) × 91 × (-18) × (-6) x 75

• Multiplying them, we get:

           ​-960,494,371,200

          Here the sign is negative as five times, that is odd times of (-) is (-).

Answer:

               So the sign of first term is + and second term is -.