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x + 1/x = 2√2 Taking cube on both sides, (a + b)3 = a3 + 3a2 b + 3ab2 + b3 x3+1/x 3+ 3×x2×1/x + 3x × 1/x2 = (2√2)3 x3+1/x 3 + 3(x+1/x) =16√2 x3+1/x 3 + 3(2√2) =16√2 x3+1/x 3 =16√2-6√2=10√2 … (1) if x + 1/x = 2√2 then x-1/x =2 x3-1/x3 =8+6 x3-1/x3 = 14 … (2) x6-1/x6 =( x3+1/x 3)( x3-1/x3) =10√2 ×14 =140√2
KMnO4 (potassium permanganate) is used to determine __________ in soil.
Wind movement for ……………….. km/hour is suitable for most of the crops.
The Indian Cooperative Societies Act 1912, ___________ defined cooperative as a society to promote economic interests of the members by Co-operative pr...
If CLR of milk is 28, then the specific gravity of milk will be-
Which of the following statements is true?
“The amount of soil moisture held between the two cardinal points viz., field capacity at ____ bar and permanent wilting point at ____bar is available...
Syngamy results in formation of which zygote?
A weather modification technique that improves a cloud's ability to produce rain or snow is:
Elements in the same vertical group of the periodic table have same
The ______________ is a unique institution under ICAR to conduct research and training in agricultural management
