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What is the value of Sin135° …

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What is the value of Sin135° ?

Posted by Ashtrix Official 6 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 4 months ago

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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CBSE > Class 10 > Mathematics