exam
Maths Puzzle
Numerical Ability
I have theta = x.
How do I find the exact value of sin2x when x is an acute angle with cosx = 3/5.
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exam Other Question
Evaluate 15r/8 for r= 18 and S=9
simplify the rational expression
x2 - 6x + 8
-------------
x2 - 4
please help I need one good example to make sure I am doing this right.