The expression \(\frac{1}{{x - 1}} - \frac{1}{{x + 1}} - \frac{2}{{{x^2} + 1}} - \frac{4}{{{x^4} + 1}}\) is equal to = ?
\(\frac{8}{{{x^8} + 1}}\)
\(\frac{8}{{{x^8} - 1}}\)
\(\frac{8}{{{x^7} - 1}}\)
\(\frac{8}{{{x^7} + 1}}\)
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Evaluated : \({{9\left| {3 - 5} \right| - 5\left| 4 \right| \div 10} \over { - 3\left( 5 \right) - 2 \times 4 \div 2}}\)
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2
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If 45 - [28 - {37 - (15 - *)}] then * equal to?
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3
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If \(\frac{a}{b}{ \text{ + }}\frac{b}{a}{ \text{ = 2,}}\) then the value of (a - b) is = ?
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4
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\(\frac{3}{7}{ \text{of }} 455 + \frac{5}{8}{ \text{of}}456 = ?\)
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5
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The value of \(\frac{{{{\left( {x - y} \right)}^3} + {{\left( {y - z} \right)}^3} + {{\left( {z - x} \right)}^3}}}{{{{\left( {{x^2} - {y^2}} \right)}^3} + {{\left( {{y^2} - {z^2}} \right)}^3} + {{\left( {{z^2} - {x^2}} \right)}^3}}}\) is = ?
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6
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(755.0% of 523.0) / 777.0 = x
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7
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52 + 132 – 112 = (?)3 – 52
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8
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In a regular week, there are 5 working days and for each day, the working hours are 8. A man gets Rs. 2.40 per hour for regular work and Rs. 3.20 per hours for overtime. If he earns Rs. 432 in 4 weeks, then how many hours does he work for ?
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9
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Supply the two missing figures in order indicated by x and y in the given equation, the fractions being in their lowest terms.
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10
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200 ÷ 25 × 4 + 12 - 3 = ?
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