Answer:
Step-by-step explanation:
Several trig identities are involved in the proof of this. This is the order in which they are used.
- cos(2x) = cos²(x) -sin²(x)
- cos²(x) +sin²(x) = 1
- cos(x) = 1/sec(x)
<h3>Proof</h3>
Starting with the left side, we can transform it into the right side.

It belongs to the rational numbers.
It is the ratio of two integers, 2 and 3.
4 unit rate is 124. 5 unit rate is 16 6 unit rate is 60
Answer:
it would be 3 times 35 divded by 7 and that answer would give you 15 as the answer so 35 is your missing number
Step-by-step explanation:
Answer:
11y + 21
Step-by-step explanation:
mutipily 3 by y + 7 bc 3 is right outside of the parentheis which means to mutipily. Then u get 3y +21 +8y. then simpilfy