⎛ − 3 ⎞ θ cot = 1 = 1 ⎝ ⎠ θ tan = sin θ tan 2 θ = ⎝ 5 ⎠ = − 3 ⋅ 5 = − 3 ⎜ ⎟ cosθ ⎝ ⎠ 5 4 4 5 2 5 θ sin =− , =− ⎛ ⎞ 4 38. cosθ 5 5 = = = − cscθ 1 1 ⎛ ⎞ 5 5 θ sin ⎛ − 3 ⎞ 3 ⎜ ⎟ − ⎜ 5 ⎟ ⎝ ⎛ ⎞ ⎛ ⎞ 5 5 5 1 θ ⎠ sin ⎝ ⎠ ⎠ ⎝ ⎛ ⎞ 5 2 5 ⎜ ⎟ − = = = secθ 1 1 ⎟ 5 ⎜ = − = ⎝ θ tan = = ⎠ 2 5 2 cosθ ⎟ ⎜ ⋅ − cosθ ⎛ ⎞ 4 4 ⎝ ⎠ 5 ⎜ 5 ⎟ ⎝ ⎠ = = = ⎛ − ⎞ ⋅ = − cscθ 1 1 1⋅ 5 5 5 θ cot = 1 = − − 4 ⎛ 5 ⎞ ⎝ 5 ⎠ 5 θ sin θ tan 3 ⎜ 5 ⎟ ⎝ ⎠ = = = ⎛ − ⎞ ⋅ = − secθ 1 1 5 5 5 cosθ ⎜ ⎟ 2 5 ⎛ 2 5 ⎞ 5 2 ⎜ − ⎟ ⎝ ⎠ ⎝ ⎠
⎛ − 3 ⎞ ⎝ ⎠ cot θ = 1 = 1 tan θ = sin θ = ⎝ 5 ⎠ = − 3 ⋅ 5 = − 3 tan θ 2 cosθ ⎛ 4 ⎞ ⎜ ⎟ ⎝ ⎠ 5 4 4 38. 5 sin θ =− , cosθ 2 5 =− 5 5 cscθ = 1 = 1 = − 5 ⎛ 5 ⎞ sin θ ⎛ − 3 ⎞ 3 ⎜ − ⎟ ⎜ 5 ⎟ sin θ ⎝ 5 ⎠ ⎛ 5 ⎞ ⎛ 5 ⎞ 1 ⎝ ⎠ secθ = 1 = 1 = 5 tan θ = = cosθ ⎛ 2 5 ⎞ ⎜ − ⎟ = ⎜ − ⎝ ⎟ ⋅ ⎜ − 5 ⎠ ⎝ ⎟ = 2 5 ⎠ 2 cosθ ⎛ 4 ⎞ 4 ⎜ 5 ⎟ ⎝ 5 ⎠ ⎝ ⎠ cscθ = 1 = 1 = 1⋅ ⎛ − 5 ⎞ ⋅ 5 = − 5 cot θ = 1 = − 4 sin θ ⎛ 5 ⎞ ⎝ − 5 ⎠ 5 tan θ 3 ⎜ 5 ⎟ ⎝ ⎠ secθ = 1 = 1 = ⎛ − 5 ⎞ ⋅ 5 = − 5 cosθ ⎛ 2 5 ⎞ ⎜ 2 5 ⎟ 5 2 ⎜ − ⎟ ⎝ ⎠ ⎝ ⎠
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