A voltage is given by v$($t$)=10$sin$(1000$t$+30)$V

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Part A

Select the correct expression for the cosine function to express v$($t$)$

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v$($t$)=10$cos$(1000$t$30)$

v$($t$)=10$cos$(1000$t$90)$

v$($t$)=10$cos$(1000$t$+90)$

v$($t$)=10$cos$(1000$t$60)$

v$($t$)=10$cos$(1000$t$+60)$