exam
Maths Puzzle
Numerical Ability
explain why a polynomial function of even degree cannot have an inverse.
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exam Other Question
Help me!
1) Express x³- 1/(x+2)(x-2) as partial fractions.
2) Find the solutin set of 2/x-3>5/x-1
Identity:
tan(45+a)-tan(45-a)
tan45+tana/1-tan45tana - tan45-tan+tana/1+tan45tana
=tan45+tana-tan45+tana/1-tan45tana+tan45tana
=2tana/1-tana
What am I doing wrong?
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