exam
Maths Puzzle
Numerical Ability
sum of(1+2+4+8+16+.........30th term)
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exam Other Question
f(x)=5x^-3x+1, find f(-2)
5(-2)^-3(-2)+1
10^+6+1
20+7=27
Just double checking my answers.
20-5x=3x+84