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>
He will eventually make enough money to buy his car
Answer:
It would be 550 because 280 - 5 = 275 and if he buys a new 1 it would cost the same and you add both
Step-by-step explanation: