engineering mathematics MCQ #5269

If f(x) = sin(x) + cos(x), then f(π / 4) =

engineering mathematics MCQ #5269

  1. Question 1

    Q1. If f(x) = sin(x) + cos(x), then f(π / 4) =

    • A) √2
    • B) 1 / √2
    • C) 1
    • D) 0

    Answer: √2

    Explanation: f(π / 4) = sin(π / 4) + cos(π / 4) = 1/√2 + 1/√2 = √2.