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Maths Puzzle
Numerical Ability
How many different arrangements of the letters of the word "doodle" are possible?
Thank You
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book Other Question
The question is: evaluate exactly without the use of your calculater. Be sure to show all your work.
cos(2pi/3)
b) cot 17pi/6
c) sin 135 degrees
d) sec (-540 degrees)
3a+7=31