Trigonometry

Asked by  | 16th Sep, 2009, 01:29: PM

Expert Answer:

Given equation is 4cosx - 3secx = tanx

4 cos2 x-3=sinx

⇒4 -4sin2 x-3 =sin x

⇒4sin2 x+sin x -1=0

sin x = (-117)/8

or x = sin-1(-117)/8

 

 

Answered by  | 21st Oct, 2009, 10:44: AM

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