(x + 1/x)² = 3 | √
<u>x + 1/x</u> = √3
According to short multiplication formula:
(a + b)³ =a³ + 3a²b + 3ab² + b³
x³ + 1/x³ = (x)³ + (1/x)³ = (x + 1/x)³ - 3x²/x - 3x/x² =
= (x + 1/x)³ - 3x - 3/x = (<u>x + 1/x</u>)³ - 3(<u>x + 1/x</u>) =
= (√3)³ - 3√3 = 3√3 - 3√3 = 0
If (x + 1/x)² = 3 the value of x³ + 1/x³ is 0.
Answer:
-216
(-6)^3
Step-by-step explanation:
-6 * (-6*-6)
-6 * 36
-216
or
-6 * -6 *-6
This is -6 multiplied together 3 times
(-6) ^3
Answer:
1. false; they are only skew if they have no congruency or similarity to the other segment
2. true
3. true
4. false; one is vertical and one is horizontal
5. true
6. false; they are not in the same locations on the cube
Step-by-step explanation:
7. m1 is 45 becuase it is alternate interior angles with b
m2 is 135 because the pair needs to add up to 180
Answer:
4th option
Step-by-step explanation:
given
sinΘ = 
and cosΘ = 
, then
( )² + ( )²
= 
+ 
= 
= 
= 1
showing sin²Θ + cos²Θ = 1
