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Complete the Identity
- tan⁡(x+π4)=?\tan \left( x + \frac { \pi } { 4 } \right) = ?

Question 184

Multiple Choice

Complete the identity
- tan⁡(x+π4) =?\tan \left( x + \frac { \pi } { 4 } \right) = ?


A) cos⁡x+sin⁡xcos⁡x−sin⁡x\frac { \cos x + \sin x } { \cos x - \sin x }
B) cos⁡x−sin⁡xcos⁡x+sin⁡x\frac { \cos x - \sin x } { \cos x + \sin x }
C) −cos⁡x+sin⁡xcos⁡x−sin⁡x- \frac { \cos x + \sin x } { \cos x - \sin x }
D) 1+cos⁡x+sin⁡xcos⁡x−sin⁡x\frac { 1 + \cos x + \sin x } { \cos x - \sin x }

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