We are asked to express cos^ 3 x in terms of powers of trigonometric functions not greater than 1
cos ^ 3 x is equal to cos x * cos^2 x.
<span>cos^2 x = 1 - sin^2 x.
</span>sin^2 x = (1 - cos 2x) /2
the answer is cos ^ 3 x = cos x * (1 - <span> (1 - cos 2x) /2 )</span>
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Answer:
3 hours
Step-by-step explanation:
you take the amount that was earned and divide it by the amount he works.

then to find the number of hours he would have to work next week to earn $43.80 you divide the amount per hour by the amount he would have to work next week.

Answer:
Step-by-step explanation:
you could do;
10 x -2 = 20
-2 x (-2) x 10 divided by (-2) + 10 + 10 + 10 +10 =20
4 + 4 - 10 x -2 - 4 - 4 = 20