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March 28, 2017

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need help simplifying some trig identities such as:
(csc t) (sin t)
cos t = 0.75 and tan t = 0.88, find sec t and cot t;

(cot2t) (sin2t) + sin2 t;

csc2t - cot2t/sin2t

  • calculus - ,

    small discrepancy in your given information

    if cos t = .75 = 75/100 = 3/4
    then we have a triangle with x=3, y = ? and hypotenuse = 4
    3^2 + y^2 = 4^2
    y^2 = 7
    y = √7
    then tan t = √7/3 = .881917.. , not .88
    so sec t = 4/3 and cot t = 3/√7

    not clear on your typing for
    (cot2t)(sin2t) + sin2 t
    is that last part sin^2 t ??????

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