The numerical value of `tanpi/3+2tan(2pi)/3+4tan(4pi)/3+8tan(8pi)/3` is equal to `-5sqrt(3)(b)-5/(sqrt(3))` (c) `5sqrt(3)` (d) `5/(sqrt(3))`

Question

The numerical value of `tanpi/3+2tan(2pi)/3+4tan(4pi)/3+8tan(8pi)/3` is equal to `-5sqrt(3)(b)-5/(sqrt(3))` (c) `5sqrt(3)` (d) `5/(sqrt(3))`

The numerical value of `tanpi/3+2tan(2pi)/3+4tan(4pi)/3+8tan(8pi)/3` is equal to `-5sqrt(3)(b)-5/(sqrt(3))` (c) `5sqrt(3)` (d) `5/(sqrt(3))`
A. `-5sqrt3`
B. `-5/sqrt3`
C. `5sqrt3`
D. `5/sqrt3`

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A
`tan.pi/3+2tan.(2pi)/3+4tan.(4pi)/3+8tan.(8pi)/3`
`=tan.pi/3+2tan(pi-pi/3)+tan.pi/3+4tan(pi-pi/3)+tan.pi/3+8tan(3pi-pi/3)`
`=tan.pi/3-2tan.(pi)/3+4tan.(pi)/3-8tan.(pi)/3`
`=-5tan.pi/3=-5sqrt3`

5 views Answered 2023-02-05 15:29