1. given the sets U={1‚2‚3‚4‚5‚6‚7‚8‚9‚10}C={2‚3‚4‚5}D={4‚5‚6‚7}what is C U D
1 answer:
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For this case we must solve the following questions:
Question 1:
We should simplify the following expression:
Applying double C we have:
By definition of multiplication of powers of the same base we have to place the same base and add the exponents:
Canceling common terms:
Answer:
Option A
Question 2:
We should simplify the following expression:
So, we have:
Simplifying common terms:
Answer:
Option D
Question 3:
We factor the following expressions to rewrite the experience:
<em>: </em>We look for two numbers that multiplied give 10 and added 7:
<em></em> We look for two numbers that multiplied give -50 and added -5:
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Rewriting the given expression we have:
We simplify common terms in the numerator and denominator we have:
Answer:
Option D
