Sammy is conducting a science experiment where he has to mix 8.25 ounces of vinegar and 4.30 ounces of lemon juice how many ounc
1 answer:
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Answer:
<h2>Step-by-step explanation:
<h3><u>First of all multiply through by 7</u>
We have
<h3><u>Expand the terms in the bracket</u>
That's
<h3><u>Add 16x to both sides</u>
That's
<h3><u>Divide both sides by 30</u>
We have the final answer as
<h3>Hope this helps you
Given:
There are given that the cos function:
Explanation:
To find the value, first, we need to use the half-angle formula:
So,
From the half-angle formula:
Then,
Since 105 degrees is the 2nd quadrant so cosine is negative
Then,
By the formula:
Then,
Put the value of cos210 degrees into the above function:
So,
Final answer:
Hence, the value of the cos(105) is shown below: