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dalvyx [7]
3 years ago
14

Find all solutions in the interval [0,2pi) sec^2x + 2tanx = 3

Mathematics
1 answer:
Marysya12 [62]3 years ago
6 0
Tan^2x + 1 + tanx - 3 = 0 tan^2x + tanx - 2 = 0 (tanx + 2)(tanx - 1) = 0 tanx = -2 or tanx = 1 x = 2.034 radians or x = 5.176 radians or x = pi/4 radians or x = 5pi/4 radians
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