Compound Angle Trig problem | Revision Server | Page 1

orchid quail Jan 4, 2024, 2:38 PM

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Need help with this trig problem not sure what ive done wrong i use the correct identity for tan and multipled both sides by 1-tan x to get 6tanx+5tanx + 1 =0 so its a quadratic and used the solutions for the angles

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nvm im dumb its 6tan^2x - 5tanx + 1 =0

broken flame Jan 4, 2024, 2:42 PM

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18.7, 26.6, 198.4, 206.6

broken flame Jan 4, 2024, 2:43 PM

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orchid quail nvm im dumb its 6tan^2x - 5tanx + 1 =0

howd you get to that

orchid quail Jan 4, 2024, 2:43 PM

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i thought you multiple the denominator of the fraction and create quadratic

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and used those solutions to find angle

broken flame Jan 4, 2024, 2:44 PM

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orchid quail i thought you multiple the denominator of the fraction and create quadratic

ohh you used double angle formula then did that

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alr i get it

orchid quail Jan 4, 2024, 2:44 PM

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yeah thanks for the help

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not sure how to set this post as solved

broken flame Jan 4, 2024, 2:45 PM

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/ solved

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do that

orchid quail Jan 4, 2024, 2:45 PM

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ok thanks

#Compound Angle Trig problem