exam
Maths Puzzle
Numerical Ability
tan^2([pi]/2-[theta])csc^2[theta]+csc^2[theta]=1/sin^4[theta] can you help me verify if this is correct
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exam Other Question
Solve by completing the square
x^2 + 2 = 2x
A survey of 400 people found that 66 were left-handed, What percent of those surveyed were left handed?