If you mean |2-2| then the absolute value is 0
If you are talking about |2| |-2| then the absolute values are 2 and 2
Solutions
To solve the given equation lets use double-angle theorem. Double-angle formulas allow the expression of trigonometric functions of angles equal to 2α<span> in terms of </span>α<span>, which can simplify the functions and make it easier to perform more complex calculations, such as integration, on them.
</span>cos(3t)=cos^3(t)-3sin^2(t)cos(t)
cos(A+B) = cosAcosB - sinAsinB
<span>Now cos(3t) = cos(2t+t) </span>
⇒<span>cos(2t)cos(t) - sin(2t)sin(t) </span>
⇒<span>(2cos^2(t)-1)cos(t) - 2sin(t)cos(t)sin(t) </span>
⇒<span> 2cos^(3)t - cos(t) - 2sin^2(t)cos(t) </span>
⇒<span> 2cos^3(t) - cos(t) - 2(1-cos^2(t))cos(t) </span>
⇒<span>2cos^3(t) - cos(t) - 2cos(t) + 2cos^3(t) </span>
⇒4cos^3(t) - 3cos(t)
I believe that the answer is C) 2000. 150/15= 10•200=2,000 I hope this helps!!!!
Use the formula below.
Let A_0 = 1 because you just want to know the percentage left. Usually that's the initial amount.
t = 15, the number of years past. n = 22, the half-life.
