Q19. If x sin (90° – θ) cot (90° – θ) = cos (90° – θ), then x is equal to

Question

(a) 0
(b) 1
(c) -1
(d) 2

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swatiqna 3 years 2021-12-23T11:07:39+00:00 1 Answer 7 views Enlightened 0

Answer ( 1 )

    0
    2021-12-23T11:08:24+00:00

    Answer: (b) 1
    x sin(90 – θ) cot(90 – θ) = cos(90 – θ)

    => x cosθ tanθ = sinθ
    => x tanθ = tanθ
    => x = 1

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