Multiple the numerator and denominator by 5.
15/20=75/100
75/100=0.75
Answer:
The answer is hardness
Step-by-step explanation:
Answer:
C. 2
Step-by-step explanation:
-11- (-13)
=-11+13 [negative plus negative =positive ;so, -(-13)=+13 ]
=2
It is easy after using formula of t<span>he complex numbers
</span>z1= 5(cos25Deg + i sin25Deg)
z2= 2(cos80Deg + isin80Deg)
so z1/z2 =5/2cis(25Deg-80Deg)=5/2cis(-55Deg)
but we know that sin(-55Deg)= - sin(55Deg), and cos(-55Deg)=cos(55Deg),
finally the answer is Z=5/2(cos55Deg-i sin55Deg) (Z=z1/z2)