Evaluate (coso sin 45° sin30°)(sin 90º - cos45 + cos 60)
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Answer:
Step-by-step explanation:
(Cos0°sin45°sin30°) (sin90°-cos45°+cos60°)
=[1×1/√2×(1/2)] [1-(1/√2)+1/2]
=[1/(2√2)] [3-√2]
=3/(2√2)-(√2/2√2)
=3/(2√2)-1/2
=3-√2/2√2
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