proove that cos 1°- sin 1° = √2 sin 44
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Hey there!
sin ( 44 )
= sin( 45 - 1 )
= sin45 cos1 - cos45 sin1
= 1/√2 ( cos 1 ) - 1/√2 ( sin1 )
= 1/√2 ( cos1 - sin1 )
Now,
sin44 = 1/√2 ( cos1 - sin1 )
√2 sin44 = cos1 - sin1
Hope It helps !
sin ( 44 )
= sin( 45 - 1 )
= sin45 cos1 - cos45 sin1
= 1/√2 ( cos 1 ) - 1/√2 ( sin1 )
= 1/√2 ( cos1 - sin1 )
Now,
sin44 = 1/√2 ( cos1 - sin1 )
√2 sin44 = cos1 - sin1
Hope It helps !
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