If cos^245-cos^230=x.cos45.sin45,then x=
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2
Answer: 1/2
Step-by-step explanation:
Cos 45 = 1/root2
Cos 30 = 1/2
Sin 45 = 1/root2
Putting values
1/2 -1/4 = x/2
1/2 =x
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