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A curve has the equation y=sin(x)cos(x), find the gradient of this curve when x = pi. (4 marks)

Option 1 - Differentiate using product rule giving dy/dx = cos²(x) - sin²(x). (2 marks) Subbing in x as pi (1 mark) then gives (-1)²+ (0)². ...

Answered by Mark D. • Maths tutor

6525 Views

Iqbal Khan’s production of Othello (2015) breaks with tradition in casting both Othello and Iago as black men - in what way does this shift the emphasis of the play?

Often dubbed a 'race play', Shakespeare's 'Othello' usually pits the jealousy of a white man against the success of a Moor, illustrating the destructive consequences of racial intollerance. Khan's casting...

Answered by Michael M. • English tutor

3714 Views

If a ball is thrown on the Moon, the projectile would have a greater range than if it were to have been thrown on Earth. Why is this the case?

The Moon has a lower gravitaional field strength than the Earth, and it does not have an atmosphere. The lower gravitational field strength means that there is lower acceleration, which results in an incr...

Answered by Tutor65616 D. • Physics tutor

12297 Views

(Studying morphology) What exactly is the role of inflection?

Certain lexical word classes can take an inflectional suffix to signal meanings and roles that are important to their word class, such as 'plural' in the case of nouns, and 'past tense' in the case of ver...

Answered by Lizzy D. • English Language tutor

4892 Views

How can you tell the difference between a positive and a normative statement?

A positive statement is a statement that can be supported or refuted by evidence. For example, 'VAT is rising' is a statement that can be proved by comparing the tax rate from previous ye...

Answered by Aarthi T. • Economics tutor

5473 Views