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(x)=cot-1(1+x+x2) হলে, দেখাও যে, (2) + 2(1) = (0)

Created: 1 year ago | Updated: 1 year ago

0(0)=cot-1(1)=π4; 0 (2)=cot-1(7)=tan-117; 0 (1)= cot-1(3)=tan-1=13

2(0 (1))=2 tan-113=tan-117+tan-134

L.H.S= 0 (2)+20 (1)=tan-117+tan-134

=tan-117+341-328=tan-1=π4=R.H.S (Showed) 

1 year ago

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1 year ago

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