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Please can someone explain how to solve this, my brain is dead :frown:

tan^2x + root3 tanx = 0

Values of x 0<_ x <_ 360

Could I factorise by tan x?


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(edited 10 years ago)
Reply 1
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ChrisSmith3
You tell me. Can you take out tanx as a common factor? What happens when you do?


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Reply 2
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kelly_kelly
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6
Original post by ChrisSmith3
You tell me. Can you take out tanx as a common factor? What happens when you do?


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Tanx(tanx + root3) = 0 ?

tanx + root3 = 0

tanx = -root3

X= 120 and 300?

Please tell me if I'm wrong.


Posted from TSR Mobile
(edited 10 years ago)
Reply 3
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ChrisSmith3
Don't forget about tanx=0

The rest is correct.
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(edited 10 years ago)
Reply 4
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kelly_kelly
OP
6
Original post by ChrisSmith3
Don't forget about tanx=0

The rest is correct.
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Thanks :smile:
Posted from TSR Mobile
(edited 10 years ago)
Reply 5
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ChrisSmith3
Original post by kelly_kelly


Grr, stop editing your posts :tongue:


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Reply 6
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kelly_kelly
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6
Original post by ChrisSmith3
Grr, stop editing your posts :tongue:


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Changed my mind, sorry :biggrin:


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Reply 7
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ChrisSmith3
Original post by kelly_kelly
Changed my mind, sorry :biggrin:


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*grumbles* :smile:


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Reply 8
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kelly_kelly
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6
Original post by ChrisSmith3


sorry! I'll buy you a biscuit..


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Reply 9
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ChrisSmith3
Original post by kelly_kelly
sorry! I'll buy you a biscuit..


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You're forgiven then :wink:


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