Assuming that ' i ' is the old familiar square root of -1 ...
The square of 6i is -36 .
Of course, if ' i ' is something else, then (6i)² = 36 i² .
Answer:
∠BAC = 68°
Step-by-step explanation:
arc BC = 360° - 84° - 140° = 136°
∠BAC = 1/2(arc BC)
∠BAC = 68°
Answer:
Step-by-step explanation:
Using trigonometry:
Sin(x)=8/11
x=sin^-1(8/11)
x= 46.6582417727776
x= 46.65 to decimal places
x= 46.7 to 1 decimal place
x= 47 to 2 s.f.