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If 2x + 1/x = 2, then find the value of ...

If 2x + 1/x = 2, then find the value of `(x)/(2x^2+x+1)`.

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UNITED BOOK HOUSE-DAULATPUR DALUICACHA BHARATI VIDYALAYA-EXERCISE
  1. What is the rate of simple interest per annum, when the interest of so...

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  2. Calculate the compound ratio of a:bc.b:ca and c:ab.

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  3. If 2x + 1/x = 2, then find the value of (x)/(2x^2+x+1).

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  4. PQ and AB are two equal chords of a circle with centre O, If anglePOQ=...

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  5. AB is the diameter of a semicircle with radius 4 cm in length and angl...

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  6. ABCD is a cyclic trapezium having AD||BC. If angleABC = 70^@ then angl...

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  7. If tan(theta+15^@)= sqrt3 then sin theta+ cos theta=?

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  8. If the number of surface of a cuboid is x, the number of edges is y, t...

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  9. If the numberical values of volume and curved surface area of a right ...

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  10. In a frequency distribution table, mean = 54, sunfixi = 2200+50k and s...

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  11. Three friends invested ₹ 1,20,000, ₹ 1.50,000 and ₹ 1,10,000 respectiv...

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  12. As a result of publicity on against smoking the number of smoker is de...

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  13. The tenth digit of two digit number is less by 3 than the unit digit. ...

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  14. If one root of the equation ax^2+bx+c=0 (a!=0) is twice the other, tha...

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  15. সরল করো : (sqrt5)/(sqrt3 + sqrt2) – (3sqrt3)/(sqrt2 + sqrt5) + (2sqrt2...

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  16. Find the value of x for which the points (x, – 1), (2, 1) and (4, 5) a...

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  17. What should be added to each of 6,15,20 and 43 to make the sums propo...

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  18. If x/(lm-n^2)=y/(mn-l^2)=z/(nl-m^2), then show that lx+my+nz=0

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  19. Prove that opposite angles of a cyclic quadrilateral are supplementary

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  20. Prove that the front angle formed at the centre of a circle by an arc,...

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