What is the value of Sin135° ?

1.	What is the value of Sin135° ?
Answer» sin(135)= sin (90 + 45) // sin(a + b) = sin(a)cos(b) + cos(a)sin(b)= sin(90)cos(45) + cos(90)sin(45)= ( 1 x 1/√2) + (0 x 1/√2)= 1/√2= (√2)/2

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