Find the Exact Value Under the Given Conditions$\sin \alpha = \frac { 20 } { 29 } , \frac { \pi } { 2 }

Question

Find the Exact Value Under the Given Conditions$\sin \alpha = \frac { 20 } { 29 } , \frac { \pi } { 2 } < \alpha < \pi ; \quad \cos \beta = \frac { 3 } { 5 } , 0 < \beta < \frac { \pi } { 2 } \quad$

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The Answer of Find the Exact Value Under the Given Conditions$\sin \alpha = \frac { 20 } { 29 } , \frac { \pi } { 2 } < \alpha < \pi ; \quad \cos \beta = \frac { 3 } { 5 } , 0 < \beta < \frac { \pi } { 2 } \quad$

Find the Exact Value Under the Given Conditions $\sin \alpha = \frac { 20 } { 29 } , \frac { \pi } { 2 } < \alpha < \pi ; \quad \cos \beta = \frac { 3 } { 5 } , 0 < \beta < \frac { \pi } { 2 } \quad$

Definitions:

Find the Exact Value Under the Given Conditions sin⁡α=2029,π2<α<π;cos⁡β=35,0<β<π2\sin \alpha = \frac { 20 } { 29 } , \frac { \pi } { 2 } < \alpha < \pi ; \quad \cos \beta = \frac { 3 } { 5 } , 0 < \beta < \frac { \pi } { 2 } \quadsinα=2920​,2π​<α<π;cosβ=53​,0<β<2π​

Definitions:

Find the Exact Value Under the Given Conditions $\sin \alpha = \frac { 20 } { 29 } , \frac { \pi } { 2 } < \alpha < \pi ; \quad \cos \beta = \frac { 3 } { 5 } , 0 < \beta < \frac { \pi } { 2 } \quad$