evaluate
give me the correct answer with step by step explanation.
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Answer:
ans= 1
Step-by-step explanation:
sin 49/cos41 + (cos 47/sin 43)²-2sin²45
=sin(90-41)/ cos 41 + ( cos(90-43) / sin 43)²-2(1/√2)²
=cos 41/cos41 +(sin43/sin43)²-2*1/2
=1+(1)²-1
=1+1-1
=1
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