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In Δ PQR, A, B and C are points on PQ, QR and PR such that PA/AQÂ =QB/BRÂ =RC/CPÂ =23. If the area of ΔPQR = 100 sq.cm, then what is the area of ΔABC in sq.cm? a) 28Â sq. cm b) 44.44 sq.cm c) 36 sq.cm d) 16. ...
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If ∑ sign denotes the summation over something, then underset{k=1}{overset{n}{mathop sum }},(2k-3) = a) 2400 b) 2450 c) 2500 d) 2550 ...
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(tanB sinB)/(sec2B – 1) is the same as a) 1 b) sin B c) cos B d) None ...
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An element having b atomic no and a mass no. under goes a α emission then a β emission simultaneously .. then the new values of atomic and mass no. is a) a-2, b-4 b) a-4,b-1 c) a-4,b-2 d) none ...
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One gram of which of the following contains the largest number of oxygen atoms? a) O b) O2 c) O3 d) All contain the same ...
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Find the polynomial as depicted by the following graph ? *Image* a) f(x) = x2 + 6x -1 b) f(x) = x2 - 6x + 5 c) f(x) = x2 - 5x + 6 d) f(x) = - x2 + 5x + 6 ...
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