Option A
<em><u>Solution:</u></em>
Given that we have to rewrite with only sin x and cos x
Given is cos 3x
We know that,
Therefore,
---- eqn 1
We know that,
Substituting these values in eqn 1
-------- eqn 2
We know that,
Applying this in above eqn 2, we get
Therefore,
Option A is correct
The answer to 6 x (-8) = -48
<u>It is -48 because anytime you multiply one negative to one positive it will be negative if you multiply two negative's it come out to be a positive </u>
Hope this helps
Have a wonderful day
Answer:
<ZXY <YXZ and <X
Step-by-step explanation:
don't forget to put the angle sign. it's the blue button all the way on the left in the picture. I used the less then sign in my answe above.
You get an answer of x=10 from solving the equation, which is extraneous so there is no solution. see work attached
B)
-cube root of 64 to find the length of the cube shaped box
-length of cube shaped box is 4 inches
-So 4 divided by 1 to find how many cubes can fit