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11th Standard English Medium Business Maths Subject Creative 2 Mark Questions with Solution Part - I

11th Standard

    Reg.No. :
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Business Maths

Time : 00:30:00 Hrs
Total Marks : 20
    10 x 2 = 20
  1. Evaluate \(\begin{vmatrix} 2 &-1 &-2 \\0 & 2 & -1\\3 & -5& 0 \end{vmatrix}.\)

  2. Show that 10P3 = 9 P3 + 3. 9P2

  3. Convert the parabola y2=4x+4y into standard form.

  4. Evaluate \(\cot\left(\frac{-15\pi}{4}\right)\)

  5. Evaluate : \(\cos\left[\frac{\pi}{3}-\cos^{-1}\left(\frac{1}{2}\right)\right]\)

  6. Show that the functions f(x) = 5x - \(\left| x \right| \) is continuous at x = 0

  7. Differentiate \({ x }^{ \frac { 2 }{ 3 } }\) from first principles

  8. If f(x,y) = 3x2 + 4y3 + 6xy - x2y3 + 6. Find fx(1, -1)

  9. A fruit grower can use two types of fertilizers in his garden, brand P and brand Q. The amounts (in Kg) of nitrogen, phosphoric acid, potash and chlorine in a bag of each brand are given in the table. Tests indicate that the garden needs atIeast 240 kgs of phosphoric acid, at least 270 kg of potash and atmost 310 kg of chlorine. If the grower wants to minimize the amount of nitrogen added to the garden, formulate the above as mathematical LPP.

  10. Construct a network diagram for the following situtation A < B; B < D, E; C

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