Question

What is sin 0 when sec 0 = 5? 0 |(1,0) sin e = 2[?] [] Rationalize the denominator if necessary.​

Answer 1

`Sin ~0 =(2√(5) )/(5)`

Explanation:

`sec0=√(5)`

`cos~0=(1)/(sec0) =(1)/(√(5) )`

`sin ~0=√(1-cos^2~0)`

`=√(1-1/5)=√(5-1/5)`

`Sin~0=√(4/5) =2/√(5)*√(5)/√(5)`

`Sin~0=2√(5)/2=2√(5)/5`

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