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Neochetina eichhorniae and Neochetina bruchi are types of weevil which were introduced from argentina to control water hyacinth weed.
{(21/20) + (20/21)}2 - {(21/20) - (20/21)}2 = ?
If both the roots of x 2 + kx + 49 = 0 are real and equal, then find the value of 'k'.
1/3 + 1/15 + 1/35 + 1/63 + 1/99 = ?
The certain sum amounts to Rs11313.5 in 2(1/2) years at 12% p.a., interest compounded 10 months. The sum (in Rs) is:
If x2a = y2b =z2c≠ 0 and x2= yz, then the value of (ab + bc + ca) /bc is :
If a = 55, then what is the value of
If a3 — b3 = 602 and a— b = 2, then find the value of( a2 + b2)
