Answer:
<em>100 </em>
Step-by-step explanation:
Evaluate the expressions | - a² - 2bc | if a = 8, b = - 2 and c = - 9.
| - 8² - 2( - 2 )( - 9 ) | = | - 64 - 36 | = | - 100 | = <em>100</em>
-(8^2) - 2(2)(9)=
-64-36
Final answer: -100
(cos(3°) / 5) = 0.201078184 radians
25 degrees