126
A=(3*-1)-(2*0)= -3
B=(3*2)-(6*8)=-42
AB= (-3)*(-42)=126 :)
Change 1/4 to a decimal is an exponent by 4 and the answer would be 0.0039
Answer:
— 4√16(cos(4π3)+isin(4π3))=2(cos(−π6)+isin(−π6))=√3−i. Explanation: De Moivre's formula tells us that: (cosθ+isinθ)n=cosnθ+isinnθ.
Step-by-step explanation:
Answer:
i got 21.42 (rounded to the nearest second decimal) if not my full answer was 21.42147412. sorry if its incorrect
Step-by-step explanation:
Answer:
40, 60 and 80 degrees.
Step-by-step explanation:
Let the smallest angle be x degrees. Then:
The 3 angles are x, x + 40 and x + 20.
As there are 180 degrees in a triangle:
x + x + 40 + x + 20 = 180
3x = 180 -40--20 = 120
x = 40 degrees.
The other 2 angles are 60 and 80 degrees.
