Given that tan x=-(√5) /2, where X is an obtuse angle, how do you find the value of sin x/2 without using a calculator? - Quora
Algebra Calculator Tutorial - MathPapa
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Evolution of the scientific calculator | FOX31 Denver
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Algebra Calculator Tutorial - MathPapa
Algebra Calculator Tutorial - MathPapa
Answered: Use a graphing calculator to find the… | bartleby