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11th Standard English Medium Business Maths Subject Algebra Creative 5 Mark Questions with Solution Part - I

11th Standard

    Reg.No. :
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Business Maths

Time : 00:30:00 Hrs
Total Marks : 25
    5 x 5 = 25
  1. If m parallel lines in a plane are intersected by a family of n parallel lines. Find the number of parallelogram formed?

  2. If the fourth term in the expansion of \({ \left( ax+\frac { 1 }{ x } \right) }^{ n }\) is \(\frac { 5 }{ 2 } \)  then find the values of a and n.

  3. Using the principle of mathematical induction, prove that 1.3 + 2.32 + 3.33 + ... + n.3n =\(\frac { (2n-1){ 3 }^{ n+1 }+3 }{ 4 } for\ all\ n\in N\)

  4. Using binomial theorem, find the value of \({ \left( \sqrt { 2 } +1 \right) }^{ 5 }+{ \left( \sqrt { 2 } -1 \right) }^{ 5 }\)

  5. Find the 11th term from the end in \({ \left( 2x-\frac { 1 }{ { x }^{ 2 } } \right) }^{ 25 }\)

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