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dh/dt = (6-h)/20. When t=0, h=1. Show that t=20ln(5/(6-h))

Part 1: This question requires us to first do some rearranging. The right hand side of the equation is in terms of h, and we are looking to find t in terms of h, so it won't be appropriate to simply integ...

Answered by Linetta A. • Maths tutor

4315 Views

Describe the military terms of the Treaty of Versailles. (4 Marks).

The Treaty of Versailles was a peace treaty which decided the fate of Germany after their loss in the First World War. It included a number of military restrictions to limit Germany's abilities to fight b...

Answered by Laura R. • History tutor

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What is economic globalisation, and why is it controversial?

Economic globalisation refers to the increasing interconnectedness between economies into a global economy which largely follows shared rules, aims and principles. This has been illustrated through the em...

Answered by Joe R. • Government and Politics tutor

4742 Views

How do you integrate (sinx)^3 dx?

Firstly, we must use the special property of trig functions which means that (sinx)ⁿis the same as sinⁿx. Likewise, (cosx)ⁿ=cosⁿx, (tanx)ⁿ=tan^n...

Answered by Shanti S. • Maths tutor

7779 Views

Show that 2(1-cos(x)) = 3sin^2(x) can be written as 3cos^2(x)-2cos(x)-1=0.

Firstly let's expand out the staring equation getting rid of any brackets. This gives: 2-2cos(x)) = 3sin^2(x). Now we can spot that the sin^2(x) term is in the first equation but no the final one. So let'...

Answered by Rebekah S. • Maths tutor

3937 Views