12. If (cos 0+ sin 0) = √2 sin 0, prove that (sin 0 - cos 0) = √2 cos 0.
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Step-by-step explanation:
(cos 0+ sin 0) = √2 sin 0
or, cos 0 = √2 sin 0 - sin 0
or, (√2 + 1) cos 0 = (√2 + 1)(√2 - 1) * sin 0
or, √2 cos 0 + cos 0 = (2 - 1) * sin 0
or, sin 0 - cos 0 = √2 cos 0
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