What is the sum of sin45 and cosin30?

[tex]a. \: 1[/tex]
[tex]b. \: \frac{ \sqrt{3 + \sqrt{2} } }{2} [/tex]
[tex]c. \: \frac{ \sqrt{5} }{2} [/tex]
[tex]d. \: \frac{ \sqrt{6} }{2} [/tex]
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