3a2 (ab+bc+ca) =
3a2+3a2bc+3a3c
3a3b+3a2bc+3c
3a3b+3a2bc+3a3c
a3b+abc+a2c
None of these
Additional Questions
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x4y-xy4 = |
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Factors of 6a2-25a+4 are: |
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The correct relationship after eliminating x, y and z from x+y = a, y+z=b and z+x = c and x+y+z = m, is: |
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If r = at2 and s = 2at, the relation among s, r and a is: |
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If a+b=6, ab=5, the value of a-b is: |
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|X - 5| + 4 > 0 and |X2| < 4. Then x can be: |
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If f(x) = sum of all the digits of x, where x is a natural number, then what is the value of f(101)+f(102)+f(103)+ .. +f(200)? |
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Pawan is a very confused person. Once he wrote 1+2+3+4+5+6+7+8+9+10 = 100. In how many places you need to change + with * to make the equality hold good ? |
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What is the highest power of 82 contained in 83!-82! ? |
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If x = 0.75, then what is the value of the expression (1+x+x2) + x3/(1-x) ? |
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