If tan⁡A=√2−1 where A is an acute angle then the value of sin⁡A∙cos⁡A will be:

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If tan⁡A=√2−1 where A is an acute angle then the value of sin⁡A∙cos⁡A will be
[NTSE STAGE–I 2018]
(A) 2√2
(B) √2
(C) 1/(2√2)
(D) 3/√2
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