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A curve has parametric equations x= 2sin(t) , y= cos(2t) + 2sin(t) for -1/2 π≤t≤ 1/2π , show that dy/dx = - 2sin(t)+ 1

A parametric equation is where both x and y are expressed separately, in terms of a parameter (t). In order to differentiate them we must use the chain rule, which here would be dy/dx= dy/dt ÷ dx/dt. The ...

KL
Answered by Katie L. Maths tutor
14824 Views

What are the different hypothesised methods of DNA replication.

There are 3 types: conservative, semi conservative and dispersive.conservative entails the original DNA strand remaining intact with a whole newly synthesised DNA strand being formedsemi conservative enta...

RF
Answered by Ronan F. Biology tutor
2719 Views

Explain how a fall in interest rates would affect aggregate demand (5 marks)

Aggregate Demand is equal to Consumption + Investment + Government Spending + (Exports - Imports).
When interest rates fall, saving becomes less profitable, as consumers will receive a smaller addit...

RS
Answered by Rajiv S. Economics tutor
3076 Views

Explain the uses of unidirectional verbs of motion

Unidirectional verbs of motion denote movement in one particular direction, usually on one occasion often with a named destination. The movement is not necessarily in a straight line but in all instance...

PF
Answered by Philip F. Russian tutor
1276 Views

Explain the process of peptide translation

Following transcription and splicing, mature mRNA travels to the ribosome and displays the start codon. A tRNA molecule which has an anti codon that is complementary to the mRNA start codon matches with t...

JS
Answered by James S. Biology tutor
2764 Views

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