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#[https://www.khanacademy.org/math/trigonometry/basic-trigonometry/basic_trig_ratios/v/basic-trigonometry| khan academy trigonometry video]
#[https://www.khanacademy.org/math/trigonometry/basic-trigonometry/basic_trig_ratios/v/basic-trigonometry| khan academy trigonometry video]
#For more about trigonometry click [http://www.sosmath.com/trig/trig.html here]
#For more about trigonometry click [http://www.sosmath.com/trig/trig.html here]
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#[https://www.khanacademy.org/math/trigonometry| trigonometry: khan academy}
#[http://www.mathsisfun.com/algebra/trigonometry.html - fundamentalconcept of angle in trignometry] this web describes trignometrical functions
#[http://www.mathsisfun.com/algebra/trigonometry.html - fundamentalconcept of angle in trignometry] this web describes trignometrical functions
# videos on trignometry from youtube which will give basic ideas
# videos on trignometry from youtube which will give basic ideas