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28 June, 14:17

Suppose

cos (π/2-x) = 3/5, cos x = 4/5

find sin, tan, csc, sec, cot

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Answers (1)
  1. 28 June, 14:43
    0
    Cos (π/2 - x) = sin x = 3/5

    tan x = sin x / cos x = 3/5 / 4/5 = 3/4

    csc x = 1/sin x = 1 / 3/5 = 5/3

    sec x = 1/cos x = 1 / 4/5 = 5/4

    cot x = 1/tan x = 1 / 3/4 = 4/3.
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