Ask Question
30 May, 18:31

How do i solve Sec^2x+2secx=0

+3
Answers (1)
  1. 30 May, 21:12
    0
    Let sec x = a

    sec^2 x + 2sec x = 0

    => a^2 + 2a = 0

    => a (a + 2) = 0

    => a = 0 or a + 2 = 0

    a = - 2

    i. e. sec x = - 2

    1/cos x = - 2

    -2cos x = 1

    cos x = - 1/2

    x = cos^ (-1) (-1/2) = 2pi/3
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “How do i solve Sec^2x+2secx=0 ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers