exam Maths Puzzle Numerical Ability

draw a sketch that uses all of the follwing information.

D is the interior of <BAE M<BAC=130 degrees
E is the interior of <DAF M<EAC= 100 degrees
F is the interior of <EAC

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exam Other Question

(2z-3)1/2=9

the (2z-3) is raised to the 1/2 power.
1.what expressions are equivalent to the one below?
log^381+log^381
2.what expressions are equivalent to the one below?
log(10^5)