# A Levle maths help

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Thread starter 4 weeks ago
#1
HELP WITH TRIGONOMETRY QUESTION: solve the equation tan^2theta=1-sectheta
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4 weeks ago
#2
[Assume each trig function has a (theta) at the end of it. I'm lazy and it looks messy]

Use the identity tan² + 1 = sec² to get rid of that tan². Rearrange the equation into a quadratic form, ax² + bx + c = 0, and let x = sec.

Solve, and don't forget to then solve for theta since you've only found x at that point!.
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Thread starter 4 weeks ago
#3
Thank you so much! That clarified it a lot, really appreciate it!
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