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How would 12 be represented in binary?

  • Decimal (the system you use everyday) is a base-10 number system, meaning it only uses 10 digits: 0-9. - Binary is a base-2 number system, meaning ...
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Answered by Aiden D. Computing tutor
2025 Views

curve C with parametric equations x = 4 tan(t), y=5*3^(1/2)*sin(2t). Point P lies on C with coordinates (4*3^(1/2), 15/2). Find the exact value of dy/dx at the point P.

dy/dx = dy/dt *dt/dx (chain rule).

x=4tan(t) hence dx/dt = 4 sec2(t)

y = 531/2sin(2t) hence y'= 1031/2 cos(2t)

therefore dy/dx = 103...

HP
Answered by Harry P. Maths tutor
7299 Views

z = 4 /(1+ i) Find, in the form a + i b where a, b belong to R, (a) z, (b) z^2. Given that z is a complex root of the quadratic equation x^2 + px + q = 0, where p and q are real integers, (c) find the value of p and the value of q.

a) Need to multiply with conjugate to bring z to form a+ib. => z= z * (1-i)/(1-i) = (4-4i) / 2 = 2-2i

b) z^2 = (2-2i)^2 = 4-8i+4 i^2 = 4-8i-4 = 8i

since z is root of x^2+px+q=0 then z* (c...

HP
5826 Views

Find the first derivative of r=sin(theta+sqrt[theta+1]) with respect to theta.

To find the first derivative we must apply the chain rule. Our aim is to find dr/d(theta). We start by bringing the differential of what's inside the sine brackets outside and multiplying it by the differ...

TD
Answered by Tutor61926 D. Maths tutor
4336 Views

“Outline two criticisms of functionalist based explanations of crime and deviance” [10 marks]

One criticism of the functionalist based explanations of crime and deviance is that functionalists rely on a pattern of crime shown in official crime statistics. However, a lot of crime is never actually ...

OP
Answered by Olivia P. Sociology tutor
7393 Views

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