No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
tan3x+tan2x−tanx
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
tan3x−tan2x−tanx
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
tan3x−tan2x+tanx
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is Ctan3x−tan2x−tanx We know that 3x=2x+x
Therefore, tan3x=tan(2x+x)
or, tan3x=tan2x+tanx1−tan2xtanx
or, tan3x−tan3xtan2xtanx=tan2x+tanx