if a=45 and b=30 then find the valu of sin a cos b -cos a sin b
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Step-by-step explanation:
sin a cos b - cos a sin b = sin 45° cos 30° - cos 45° sin 30°
= (1/√2)(√3/2)-(1/√2)(1/2)
=(√3/2√2)-(1/2√2)
= √3-1 / 2√2
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