exam Maths Puzzle Numerical Ability

Simplify

3^2n-1x3^5n

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exam Other Question

Can you help me with these log problems? solve with calculator to the fourth place
Thanks
14.)log 0.0332
15.)ln 40,257
16.) log x-2.0832
17.) ln x = -1.1577 I need to know how to write a proof for the following:
Given- Line DE is parallel to line BC. BOth lines are inside a triangle. Angle 1=angle 2. angle 1 and 2 are both on line DE.