CBSE Class 11-science Answered
Trigonometry
Asked by | 16 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 | 21 Oct, 2009, 10:44: AM
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