Rút gọn A= sin\frac{a}{2} . cos\frac{a}{2}. cos a. cos 2a. cos4a. cos8a. cos16a

6 spoons of sugar for every 21 cups of flour

step-by-step explanation:

y=x+9

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step-by-step explanation:

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: