In a right triangle right-angled at , if , what is the value of ?

Answer and explanation

Correct answer: D.

  1. Step 1: In a right triangle where , the opposite side is 3 and the hypotenuse is 5.
  2. Step 2: Using the Pythagorean theorem, the adjacent side is .
  3. Step 3: Therefore, .
Answer
.
Why not the others: represents the tangent ratio , represents the secant ratio , and represents the cosecant ratio .

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