Step-by-step explanation:
this is an improper fraction to make it mixed you have to find how many 20s are in 23
yea only one
so 1 is the whole number
then it is 1 3/20
you can again make it improper by multiplying denominator by 1 and adding 3
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.

B I hope this help I think it’s right