70 If (t? – 1)(12 – 2)(12 – 3)(t2 –...
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70 If (t? – 1)(12 – 2)(12 – 3)(t2 – 4) = 1680, then sum of real value(s) of *t is: (1) 9 (2) 3 (3) -3 (4) 0

11th - 12th Class
Maths
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172
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( left(t^{2}-1right)left(t^{2}-2right)left(t^{2}-3right)left(t^{2}-4right)=1680 )
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