Find (frac{mathrm d y}{mathrm d x}) if (y = cos x).

Find (frac{mathrm d y}{mathrm d x}) if (y = cos x).

  • A.
    (sin x)
  • B.
    (- sin x)
  • C.
    (tan x)
  • D.
    (- tan x)
Correct Answer: Option B
Explanation

If (y = cos x)

(frac{mathrm d y}{mathrm d x}) =—(sin x)

There is an explanation video available below.

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