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What is the truth table for the Boolean operator AND?

The Boolean operator AND is a very common one encountered in Computer Science, along with NOT and OR (and its variant XOR). The operator takes in two inputs and gives one output. The truth table shows all th...
AN
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Describe and explain three differences between meiosis and mitosis

Mitosis consists of one cell division whereas meiosis consists of two cell divisions.Mitosis produces two genetically identical daughter with the same number of chromosomes as the parent cell whereas meiosis...
KP
Answered by Krishan P. • Biology tutor
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Given that y={(x^2+4)(x−3)}/2x, find dy/dx in its simplest form.

Looking at the problem to start we can see that this is an algebraic division problemThere are three common methods you will come across for finding dy/dx for algebraic problems: The Chain Rule, The Product ...
MT
Answered by Meeza T. • Maths tutor
7899 Views

How do I deal with parametric equations? x = 4 cos ( t + pi/6), y = 2 sin t, Show that x + y = 2sqrt(3) cos t.

Note: I have a screenshot of the question that I should be able to add to the work space. Q5 C4 June 2014 Edexcel.x + y = 2sqrt(3) cos tStart with x = 4 cos ( t + pi/6) and the trig identity cos(A + B) = cos...
KD
Answered by Karina D. • Maths tutor
11014 Views

How do I know when to use the preterite or imperfect past tense?

The preterite tense indicates a single, completed action in the past. The imperfect indicates a continuous action in the past, a repeated action or a description. Let's take the verb 'comer', to eat, and the...
JB
Answered by JAGGER B. • Spanish tutor
2206 Views