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Trig Equation Help # 2: tan^2x = secx + 1?

2007-10-18 19:40:41 · 1 answers · asked by stanleynickarz 2 in Science & Mathematics ➔ Mathematics

1 answers

tan^2x = secx + 1
sec^2x - 1 = secx + 1
sec^2x - secx - 2 = 0
(secx + 1)(secx - 2) = 0
secx = - 1, 2
cosx = - 1, 1/2
x = π/3, π, 5π/3 (± 2nπ)

2007-10-18 20:04:04 · answer #1 · answered by Helmut 7 · 0⤊ 0⤋

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