Cos10 cos20 -sin10 sin20 = cos(10+20) = cos30 = √3/2
<h3>
Answer:</h3>
270 minutes
<h3>
Step-by-step explanation:</h3>
(60 minutes/hour) × (4.5 hours) = 270 minutes
Answer:
i don't now
Step-by-step explanation:
Answer:
Step-by-step explanation:
Squaring a^(-2) results in a^(-4).
Squaring 8^7 results in 8^14.
Putting these factors together, we get
8^14
------- this is equivalent to Answer C.
a^4
Answer: 6
Explanation: calculator