\sin(90) + \cos(45 ) = ​

Question

`\sin(90) + \cos(45 ) =`
​

Answer 1

you know that sin 90 is 1 and cos 45 is 1/√2

so,

`sin90 + cos45 \\ = 1 + (1)/( √(2) ) \\ = ( √(2) + 1 )/(2)`