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TS EAMCET · Maths · Trigonometric Equations

For \(x \in I R, 3 \cos (4 x-5)+4\) lies in the interval

  1. A \([1,7]\)
  2. B \([4,7]\)
  3. C \([0,7]\)
  4. D \([2,7]\)
Verified Solution

Answer & Solution

Correct Answer

(A) \([1,7]\)

Step-by-step Solution

Detailed explanation

Since, the value of \(\cos \theta\) lies between -1 and +1…