exam Maths Puzzle Numerical Ability

Solve the equation In(x+5)- In(3)=In(x-3).

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exam Other Question

How do you graph this function?

y=x-4 and y=-3
If we extablish an identity, sinAcscA-sin^2*A could equal which of the following quantities?
1. 1
2. cos^2*A
3. sin^2*A-1
4. tan^2*A