Answer:

Step-by-step explanation:
<u>Use identities to set the equation up as a quadratic</u>

<u>Make the substitution u=cos(x) and solve the quadratic</u>
<u />


Hence, 
Answer:
242
Step-by-step explanation:
1452÷ 6 would = 242
I hope this helped you!
Line 4. 12 would be divided by 6, not multiplied.