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Start learning 50% faster. Sign in nowOnly a few Instrument are Guitars → All Guitars cane be Instrument. Hence conclusion I does not follow. Only a few Sitar are Guitars → Some Sitar are Guitars (I) and Some Sitar are not Guitars (O). Hence conclusion II does not follow. No Classical is a Instrument (E) + Only a few Instrument are Guitars (I) → Some Guitars are not Classicals (O*). Hence conclusion III follows.
If a3 + b3 = 6240 and a + b = 30, then find the value of {(a + b)2 – 3ab}
If x2 = 15x + 1, then find the value of {x3 - (1/x3) }.
Find the value of ‘x’ in the given expression
(49/16)x× (64/343)x-1= 4/7