Question

find the numerical value of sin 135°
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Answer 1

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

Step-by-step explanation:

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Answer 2

Answer:

Find the value of sin 135.

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

Step-by-step explanation:

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