<p>What if I put this for 6 part b:</p>
<p>cos(x)+sin(x^2) = 1+(1-1/(2!))x^2+x^4/(4!)-(1/(3!)+1/(6!))x^6</p>
<p>Also on part c I did -6!(1/6! + 1/3!) again I had a brain fart and didn’t think of a way to simplify it.</p>
<p>What if I put this for 6 part b:</p>
<p>cos(x)+sin(x^2) = 1+(1-1/(2!))x^2+x^4/(4!)-(1/(3!)+1/(6!))x^6</p>
<p>Also on part c I did -6!(1/6! + 1/3!) again I had a brain fart and didn’t think of a way to simplify it.</p>