Published by:
CGP EDU Academic Team
Published on: August 11, 2026
Solve the trigonometrical equation tan 2 θ + (1 – 
) tan θ – 
= 0
Text Solution
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CHECK THE SOLUTION.
Sol. tan 2 θ + tan θ – 
tan θ – 
= 0
⇒ tan θ (tan θ + 1) – 
(tan θ + 1) = 0
⇒ (tan θ – 
) (tan θ + 1) = 0
⇒ tan θ = 
and tan θ = – 1
⇒ tan θ = tan π / 3 and tan θ = tan (– π /4)
θ = n π + π /3 and θ = n π – ( π /4)
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