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Math

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Solve (sinx-1)(cosx -1/2) = 0 where 0≤x<2pi

a) pi/3, pi/2, 5pi/3
b) pi/6, 5pi/6, pi
c) pi/3, pi, 5pi/3
d) pi/6, pi/2, 5pi/6

  • Math - ,

    sin x = 1 when x = pi/2

    cos x = 1/2 when x = pi/3 and -pi/3 which is 6 pi/3 - pi/3 = 5 pi/3

    so
    pi/3 , pi/2 , 5 pi/3 a)

    and for heavens sake remember that
    sin^2 x + cos^2 x = 1 !!!!

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