1. De la figura, calcule $cotα-$ $α-tanβ$ 4. De la figura, calcule tand. . B B) 4 A) 3 B) 1 $A\right)5$ $C\right)3$ D) 2 3 $C\right)\dfrac {1} {7}$ 15 5. Reduzca la siguiente expresión 2. $Si2sen\left(α+θ\right)=3sen\left(α-θ\right)$ calcule tana cot0. $\left(sec^{2}θ+tan^{2}θ\right)\left(sec^{4}θ+tan^{4}θ\right)+tan^{8}θ$ A) 5 $B\right)\dfrac {1} {5}$ $A\right)cosθ$ $cos^{6}θ$ $C\right)sec^{2}θ$ $D\right)sec^{8}θ$ $C\right)-5$ $D\right)-\dfrac {1} {5}$ 3. $si\dfrac {1} {seny}+\dfrac {1} {tany}=3$ calcule tany. $A\right)\dfrac {1} {2}$ $4$ $B\right)\dfrac {3} {5}$ $C\right)\dfrac {4} {3}$ $D\right)\dfrac {3} {4}$