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    • Question

      If 5tanθ = 12, then find the value of (sinθ –

      cosθ).
      A 12/13 Correct Answer Incorrect Answer
      B 7/13 Correct Answer Incorrect Answer
      C 5/13 Correct Answer Incorrect Answer
      D None of these Correct Answer Incorrect Answer

      Solution

      We have, 5tanθ = 12

      So, tan θ = (12/5)

      Or, (perpendicular/base) = (12/5)

      So, hypotenuse 2  = base 2  + perpendicular 2  = 5 2  + 12 2

      So, hypotenuse = √169 = 13

      So, sin θ = (perpendicular/hypotenuse) = (12/13)

      And, cos θ = (base/ hypotenuse) = (5/13)

      Therefore, sin θ – cos θ = (12/13) – (5/13) = (7/13)

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