Question

Cat e sin de pi/2 + cos de pi/4 ?

Answer 1

cos$\frac{pi}{4}= \frac{ \sqrt{2} }{2}$
sin$\frac{pi}{2} =1$
=>sin de pi pe 2 + cos de pi pe 4=$\frac{ 2+\sqrt{2} }{2}$

Answer 2

sinπ/2+cosπ/4=1+√2/2=(2+√2)/2